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https://www.readbyqxmd.com/read/29156846/s100a14-rs11548103-g-a-polymorphism-is-associated-with-a-decreased-risk-of-esophageal-cancer-in-a-chinese-population
#1
Yang Zhao, Feng Yao, Weifeng Tang, Haiyong Gu, Heng Zhao
Objective: In China in 2009, esophageal cancer was the fifth most commonly diagnosed malignancy and the fourth leading cause of malignancy-related death. Accumulating evidence indicates that genetic factors might play an important role in esophageal squamous cell carcinoma (ESCC) carcinogenesis. Materials and Methods: In total, we recruited 629 ESCC patients and 686 controls. Genetic variations in the S100A14, MLH1, SMAD7 and CCL22/MDC genes were measured using the ligation detection reaction method...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29122683/high-cxcl10-ip-10-levels-are-a-hallmark-in-the-clinical-evolution-of-the-hiv-infection
#2
Jacqueline María Valverde-Villegas, Rúbia Marília de Medeiros, Joel Henrique Ellwanger, Breno Riegel Santos, Marineide Gonçalves de Melo, Sabrina Esteves de Matos Almeida, José Artur Bogo Chies
The aim of this study was to investigate the modulation of plasma CXCL10, CCL20, CCL22, CCL2, CCL17 and CCL24 levels in HIV-positive patients grouped according to extreme phenotypes of progression to AIDS, and at different stages of HIV infection. HIV-positive individuals with extreme phenotypes of AIDS progression (n=58) at different clinical stages (chronic individuals, both pre-HAART and under-HAART) and HIV-negative controls (n=20) were evaluated. Additionally, HIV-positive individuals that initiated HAART with >350CD4(+)T-cells/mm(3) were compared with those who initiated treatment with <350CD4(+)T-cells/mm(3)...
November 6, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29118379/a-new-antagonist-for-ccr4-attenuates-allergic-lung-inflammation-in-a-mouse-model-of-asthma
#3
Yang Zhang, Yinfang Wu, Hui Qi, Hongwei Gong, Yan Zhang, Enquan Xu, Song Li, Dalong Ma, Junhai Xiao, Ying Wang, Wen Li, Huahao Shen
CCR4 is highly expressed on Th2 cells. CCR4 ligands include CCL22 and CCL17. Chemokine-like factor 1 can also mediate chemotaxis via CCR4. We designed and synthetized novel CCR4 antagonists, which were piperazinyl pyridine derivatives, for disrupting the interaction between three ligands and CCR4. We also determined whether these novel CCR4 antagonists could alleviate allergic asthma in a mouse. For identifying the potent compounds in vitro, we used chemotaxis inhibition and competition binding assays induced by CCL22, CCL17 and one of CKLF1's C-terminal peptides, C27...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29116124/monocytes-from-patients-with-primary-ciliary-dyskinesia-show-enhanced-inflammatory-properties-and-produce-higher-levels-of-pro-inflammatory-cytokines
#4
M Cockx, M Gouwy, P Ruytinx, I Lodewijckx, A Van Hout, S Knoops, N Pörtner, I Ronsse, L Vanbrabant, V Godding, K De Boeck, J Van Damme, M Boon, S Struyf
Patients with Primary Ciliary Dyskinesia (PCD) suffer from recurrent upper and lower airway infections due to defects in the cilia present on the respiratory epithelium. Since chronic inflammatory conditions can cause changes in innate immune responses, we investigated whether monocytes isolated from the peripheral blood of pediatric PCD patients respond differently to inflammatory stimuli, compared to monocytes from healthy children and adults. The receptor for C5a (C5aR) was upregulated in PCD, whereas expression levels of the leukocyte chemoattractant receptors CCR1, CCR2, CCR5, BLT1 and FPR1 on PCD monocytes were similar to those on monocytes from healthy individuals...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29107385/ccl2-conditionally-determines-ccl22-dependent-th2-accumulation-during-tgf-%C3%AE-induced-breast-cancer-progression
#5
Palash Kumar Mandal, Subir Biswas, Gunjan Mandal, Suman Purohit, Arnab Gupta, Amita Majumdar Giri, Sougata Roy Chowdhury, Arindam Bhattacharyya
We investigated expressions of -CC chemokine ligand 2 (CCL2) and CCL5 in tumor samples from 147 breast cancer (BCa) patients and correlated with transforming growth factor-β (TGF-β) expression. We observed an inverse correlation of TGF-β expression with CCL2, CCL5 expression in early stages of BCa. On contrary, in late stages, CCL2, not CCL5, expression was found to be directly proportional with TGF-β expression. TGF-β stimulated MDA-MB-231 cells to express CCL2, however, downregulated both CCL2 and CCL5 in MCF-7...
October 16, 2017: Immunobiology
https://www.readbyqxmd.com/read/29099057/the-c-c-chemokines-ccl17-and-ccl22-and-their-receptor-ccr4-in-cns-autoimmunity
#6
REVIEW
Stefanie Scheu, Shafaqat Ali, Christina Ruland, Volker Arolt, Judith Alferink
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system (CNS). It affects more than two million people worldwide, mainly young adults, and may lead to progressive neurological disability. Chemokines and their receptors have been shown to play critical roles in the pathogenesis of experimental autoimmune encephalomyelitis (EAE), a murine disease model induced by active immunization with myelin proteins or transfer of encephalitogenic CD4⁺ T cells that recapitulates clinical and neuropathological features of MS...
November 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29069516/conserved-structures-formed-by-heterogeneous-rna-sequences-drive-silencing-of-an-inflammation-responsive-post-transcriptional-operon
#7
Abhijit Basu, Niyati Jain, Blanton S Tolbert, Anton A Komar, Barsanjit Mazumder
RNA-protein interactions with physiological outcomes usually rely on conserved sequences within the RNA element. By contrast, activity of the diverse g amma-interferon- a ctivated i nhibitor of t ranslation (GAIT)-elements relies on the conserved RNA folding motifs rather than the conserved sequence motifs. These elements drive the translational silencing of a group of chemokine (CC/CXC) and chemokine receptor (CCR) mRNAs, thereby helping to resolve physiological inflammation. Despite sequence dissimilarity, these RNA elements adopt common secondary structures (as revealed by 2D- 1 H NMR spectroscopy), providing a basis for their interaction with the RNA-binding GAIT complex...
October 24, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29069507/blockade-of-gm-csf-pathway-induced-sustained-suppression-of-myeloid-and-t-cell-activities-in-rheumatoid-arthritis
#8
Xiang Guo, Brandon W Higgs, Anne-Christine Bay-Jensen, Yuling Wu, Morten A Karsdal, Michael Kuziora, Alex Godwood, David Close, Patricia C Ryan, Lorin K Roskos, Wendy I White
Objectives: Targeting the granulocyte-macrophage colony-stimulating factor (GM-CSF) pathway holds great potential in the treatment of inflammatory diseases. Mavrilimumab, a human monoclonal GM-CSF receptor-α antibody, has demonstrated clinical efficacy in RA. Our current study aimed to elucidate mechanisms of action and identify peripheral biomarkers associated with therapeutic responses of GM-CSF antagonism in RA. Methods: A 24-week placebo (PBO)-controlled trial was conducted in 305 RA patients who received mavrilimumab (30, 100 or 150 mg) or PBO once every 2 weeks...
October 23, 2017: Rheumatology
https://www.readbyqxmd.com/read/29055885/industrial-hog-farming-is-associated-with-altered-circulating-immunological-markers
#9
Jonathan N Hofmann, Meredith S Shiels, Melissa C Friesen, Troy J Kemp, Anil K Chaturvedi, Charles F Lynch, Christine G Parks, Ligia A Pinto, Allan Hildesheim, Michael C R Alavanja, Laura E Beane Freeman
OBJECTIVES: The previously observed inverse association between hog farming and risk of lung cancer in the Agricultural Health Study (AHS) has been attributed to endotoxin exposure, the levels of which are particularly high in industrial hog confinement facilities. We conducted an investigation to explore the potential biological mechanisms underlying this association, as well as other immunological changes associated with hog farming. METHODS: Serum immune marker levels were measured using a multiplexed bead-based assay in 61 active hog farmers and 61 controls matched on age, phlebotomy date and raising cattle...
October 21, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29050978/chrysin-attenuates-atopic-dermatitis-by-suppressing-inflammation-of-keratinocytes
#10
Jin Kyeong Choi, Yong Hyun Jang, Soyoung Lee, Sang-Rae Lee, Young-Ae Choi, Meiling Jin, Jung Ho Choi, Jee Hun Park, Pil-Hoon Park, Hyukjae Choi, Taeg Kyu Kwon, Dongwoo Khang, Sang-Hyun Kim
We previously reported the inhibitory effect of chrysin, a natural flavonoid plentifully contained in propolis, vegetables and fruits, on the mast cell-mediated allergic reaction. In this study, we evaluated the effect of chrysin on atopic dermatitis (AD) and defined underlying mechanisms of action. We used an AD model in BALB/c mice by the repeated local exposure of 2,4-dinitrochlorobenzene (DNCB) and house dust mite (Dermatophagoides farinae extract, DFE) to the ears. Repeated alternative treatment of DNCB/DFE caused AD-like skin lesions...
October 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29050765/alveolar-macrophages-from-tuberculosis-patients-display-an-altered-inflammatory-gene-expression-profile
#11
Lelia Lavalett, Hector Rodriguez, Hector Ortega, Wolfgang Sadee, Larry S Schlesinger, Luis F Barrera
Alveolar macrophages (AMs) are major targets of Mycobacterium tuberculosis (Mtb) infection, critical during the progression of active tuberculosis (TB). The complex immunopathology of TB generates diverse microenvironments in the lung, which shape immune responses by AMs. In the current study, we perform whole genome microarray transcriptional profiling on RNA isolated from AMs from TB patients (AMsTB) compared to AMs from control subjects (AMsCT) using bronchoalveolar lavage (BAL). Our hypothesis was that systemic effects on the local lung microenvironment during TB affect the transcriptional response of AMsTB...
December 2017: Tuberculosis
https://www.readbyqxmd.com/read/29042607/abnormal-m1-m2-macrophage-phenotype-profiles-in-the-small-airway-wall-and-lumen-in-smokers-and-chronic-obstructive-pulmonary-disease-copd
#12
Mathew Suji Eapen, Philip M Hansbro, Kielan McAlinden, Richard Y Kim, Chris Ward, Tillie-Louise Hackett, Eugene H Walters, Sukhwinder Singh Sohal
We explore potential dysregulation of macrophage phenotypes in COPD pathogenesis through integrated study of human small airway tissue, bronchoalveolar lavage (BAL) and an experimental murine model of COPD. We evaluated human airway tissue and BAL from healthy controls, normal lung function smokers (NLFS), and COPD subjects. Both small airways and BAL cells were immunohistochemically stained with anti-CD68 for total macrophages and with anti-CD163 for M2, and anti-iNOS for M1 macrophages. Multiplex ELISA measured BAL cytokines...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28990098/anti%C3%A2-inflammatory-effect-of-amomum%C3%A2-xanthioides-in-a-mouse-atopic-dermatitis-model
#13
Young-Ae Choi, Jin Kyeong Choi, Yong Hyun Jang, Soyoung Lee, Sang-Rae Lee, Jung Ho Choi, Jee Hun Park, Tae-Yong Shin, Sang-Hyun Kim
Atopic dermatitis (AD) is a chronic relapsing inflammatory skin disorder. The present study investigated the effects of Amomum xanthioides extract (AXE) on AD‑like skin inflammation using a Dermatophagoides farinae extract (DFE) and 2,4‑dinitrochlorobenzene (DNCB)‑induced mouse AD model. Hematoxylin and eosin staining results demonstrated that repeated DFE/DNCB exposure markedly increased the thickening of the dermis and epidermis, in addition to the infiltration of eosinophils and mast cells. However, oral administration of AXE reduced these histopathological alterations in a dose‑dependent manner...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28987144/cancer-associated-fibroblasts-cafs-are-activated-in-cutaneous-basal-cell-carcinoma-and-in-the-peritumoural-skin
#14
Silje Haukali Omland, Erika Elgstrand Wettergren, Tobias Mourier, Anders Johannes Hansen, Maria Asplund, Sarah Mollerup, Robert Robert
BACKGROUND: Cutaneous basal cell carcinoma (BCC) is the commonest cancer worldwide. BCC is locally invasive and the surrounding stromal microenvironment is pivotal for tumourigenesis. Cancer associated fibroblasts (CAFs) in the microenvironment are essential for tumour growth in a variety of neoplasms but their role in BCC is poorly understood. METHODS: Material included facial BCC and control skin from the peritumoural area and from the buttocks. With next-generation sequencing (NGS) we compared mRNA expression between BCC and peritumoural skin...
October 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28985770/systemic-inflammation-mediates-the-detrimental-effects-of-obesity-on-asthma-control
#15
X Zhang, J Zheng, L Zhang, Y Liu, G P Chen, H P Zhang, L Wang, D Y Kang, L G Wood, G Wang
BACKGROUND: Obesity negatively impacts asthma control, but the inflammatory mechanisms are poorly understood. OBJECTIVE: To explore which systemic inflammatory mediators mediate the effects of obesity on asthma control. METHODS: The subjects with stable asthma (n = 108) underwent assessment of clinical characteristics, which included usingThe Asthma Control Questionnaire (ACQ)-6. Obesity was defined as a body mass index (BMI) of more than or equal to 30 kg/m2, overweight was defined as BMI between 25 to 29...
October 2, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28975891/local-immune-response-in-cutaneous-basal-cell-carcinoma
#16
Silje Haukali Omland
BCC is an immunogenic tumor highlighted by the increased risk in immunosuppressed individuals and the frequent occurrence of tumor infiltrating lymphocytes (TILs) in the tumor surroundings. Immunotherapy is evolving as a promising treatment strategy for several cancer types where topical immunostimulators are among the possibilities for superficial BCC. The overall aim of this thesis is to characterize the immunologic response upon BCC as well as characterizing the surrounding tumor stroma. The aim was achieved by the use of a variety of laboratory techniques; immunohistochemistry, immunoflourescence, qRT-PCR and NGS...
October 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28962577/acute-maternal-oxidant-exposure-causes-susceptibility-of-the-fetal-brain-to-inflammation-and-oxidative-stress
#17
Feroz Akhtar, Christopher A Rouse, Gabriel Catano, Marcus Montalvo, Sarah L Ullevig, Reto Asmis, Kusum Kharbanda, Shivani K Maffi
BACKGROUND: Maternal exposure to environmental stressors poses a risk to fetal development. Oxidative stress (OS), microglia activation, and inflammation are three tightly linked mechanisms that emerge as a causal factor of neurodevelopmental anomalies associated with prenatal ethanol exposure. Antioxidants such as glutathione (GSH) and CuZnSOD are perturbed, and their manipulation provides evidence for neuroprotection. However, the cellular and molecular effects of GSH alteration in utero on fetal microglia activation and inflammation remain elusive...
September 30, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28958612/apamin-inhibits-tnf-%C3%AE-and-ifn-%C3%AE-induced-inflammatory-cytokines-and-chemokines-via-suppressions-of-nf-%C3%AE%C2%BAb-signaling-pathway-and-stat-in-human-keratinocytes
#18
Woon-Hae Kim, Hyun-Jin An, Jung-Yeon Kim, Mi-Gyeong Gwon, Hyemin Gu, Sun-Jae Lee, Ji Y Park, Kyung-Duck Park, Sang-Mi Han, Min-Kyung Kim, Kwan-Kyu Park
BACKGROUND: Atopic dermatitis (AD) is identified by an increase in infiltrations of several inflammatory cells including type 2 helper (Th2) lymphocytes. Th2-related chemokines such as thymus and activation-regulated chemokine (TARC/CCL17) and macrophage-derived chemokine (MDC/CCL22), and pro-inflammatory cytokines including interleukin (IL)-1β and IL-6 are considered to play a crucial role in AD. Tumor necrosis factor (TNF)-α- and interferon (IFN)-γ induce the inflammatory condition through production of TARC, MDC, IL-1β and IL-6, and activations of related transcription factors, such as nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and signal transducer and activator of transcription (STAT) in keratinocytes...
April 18, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28949055/allopurinol-suppresses-expression-of-the-regulatory-t-cell-migration-factors-tarc-ccl17-and-mdc-ccl22-in-hacat-keratinocytes-via-restriction-of-nuclear-factor-%C3%AE%C2%BAb-activation
#19
Makoto Osabe, Toshiyuki Tajika, Masahiro Tohkin
Recent studies have shown that sparse distribution of regulatory T cells (Tregs) in the skin might be involved in the onset of severe cutaneous adverse drug reactions such as Stevens-Johnson syndrome and toxic epidermal necrolysis. Treg migration toward epithelial cells is regulated by certain chemokines, including TARC/CCL17 and MDC/CCL22. In this study, we analyzed the effect of allopurinol (APN), a drug known to cause severe adverse reactions, on the expression of factors affecting Treg migration and the mechanisms involved...
September 26, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28941492/replenishing-regulatory-t-cells-to-halt%C3%A2-depigmentation-in-vitiligo
#20
REVIEW
I Caroline Le Poole, Shikhar Mehrotra
Vitiligo is a cutaneous autoimmune disease, especially devastating to patients with darker skin tones because of the contrast between unaffected and lesional skin. We studied immune cells infiltrating vitiligo skin and found very few regulatory T cells (Tregs). Vitiligo was not associated with a reduced frequency or function of circulating Tregs. To manipulate Treg function, we used mouse models expressing melanocyte-reactive TCRs, following changes in pelage color. We also isolated splenocytes to measure Treg function and evaluated cutaneous Treg abundance...
October 2017: Journal of Investigative Dermatology. Symposium Proceedings
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