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https://www.readbyqxmd.com/read/29122683/high-cxcl10-ip-10-levels-are-a-hallmark-in-the-clinical-evolution-of-the-hiv-infection
#1
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/29122406/sensitive-skin-is-highly-frequent-in-extrinsic-atopic-dermatitis-and-correlates-with-disease-severity-markers-but-not-necessarily-with-skin-barrier-impairment
#2
Tsuyoshi Yatagai, Takatoshi Shimauchi, Hayato Yamaguchi, Jun-Ichi Sakabe, Masahiro Aoshima, Shigeki Ikeya, Kazuki Tatsuno, Toshiharu Fujiyama, Taisuke Ito, Toshiyuki Ojima, Yoshiki Tokura
BACKGROUND: Sensitive skin is a condition of cutaneous hypersensitivity to environmental factors. Lactic acid stinging test (LAST) is commonly used to assess sensitive skin and composed of four distinct sensations (pain, burning sensation, itch, and crawly feeling). A link between sensitive skin and barrier dysfunction has been proposed in atopic dermatitis (AD) patients. However, clinical and laboratory factors that are associated with sensitive skin remain unelucidated. OBJECTIVE: To investigate relationship between sensitive skin and AD-associated markers...
November 2, 2017: Journal of Dermatological Science
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/29103909/rna-aptamers-recognizing-murine-ccl17-inhibit-t-cell-chemotaxis-and-reduce-contact-hypersensitivity-in%C3%A2-vivo
#4
Lorenz Fülle, Nancy Steiner, Markus Funke, Fabian Gondorf, Franziska Pfeiffer, Julia Siegl, Friederike V Opitz, Silvana K Haßel, Anna Belen Erazo, Oliver Schanz, H James Stunden, Michael Blank, Carsten Gröber, Kristian Händler, Marc Beyer, Heike Weighardt, Eicke Latz, Joachim L Schultze, Günter Mayer, Irmgard Förster
The chemokine CCL17, mainly produced by dendritic cells (DCs) in the immune system, is involved in the pathogenesis of various inflammatory diseases. As a ligand of CCR4, CCL17 induces chemotaxis and facilitates T cell-DC interactions. We report the identification of two novel RNA aptamers, which were validated in vitro and in vivo for their capability to neutralize CCL17. Both aptamers efficiently inhibited the directed migration of the CCR4(+) lymphoma line BW5147.3 toward CCL17 in a dose-dependent manner...
October 13, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29099057/the-c-c-chemokines-ccl17-and-ccl22-and-their-receptor-ccr4-in-cns-autoimmunity
#5
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/29098351/the-roles-of-genetic-factors-in-kawasaki-disease-a-systematic-review-and-meta-analysis-of-genetic-association-studies
#6
REVIEW
Xiaochuan Xie, Xiaohan Shi, Meilin Liu
This systematic review and meta-analysis aimed to better elucidate the roles of genetic factors in Kawasaki disease (KD), and determine the potential genetic biomarkers of KD. The systematic literature search of PubMed, Medline, Embase, Web of Science and CNKI identified 164 eligible studies. The qualitative synthesis revealed that 62 genes may be correlated with the susceptibility to KD, and 47 genes may be associated with the incidence of coronary artery lesions (CALs) in KD. A total of 53 polymorphisms in 34 genes were investigated in further quantitative synthesis...
November 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29088998/post-injury-administration-of-galantamine-reduces-traumatic-brain-injury-pathology-and-improves-outcome
#7
Jing Zhao, Michael J Hylin, Nobuhide Kobori, Kimberly N Hood, Anthony N Moore, Pramod K Dash
Acetylcholine is an excitatory neurotransmitter in the central nervous system that plays a key role in cognitive function, including learning and memory. Previous studies have shown that experimental traumatic brain injury (TBI) reduces cholinergic neurotransmission, decreases evoked release of acetylcholine, and alters cholinergic receptor levels. Galantamine (FDA-approved for the treatment of vascular dementia and Alzheimer's disease) has been shown to inhibit acetylcholinesterase activity, and allosterically potentiate nicotinic receptor signaling...
October 31, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29065892/the-value-of-blood-cytokines-and-chemokines-in-assessing-copd
#8
Eric Bradford, Sean Jacobson, Jason Varasteh, Alejandro P Comellas, Prescott Woodruff, Wanda O'Neal, Dawn L DeMeo, Xingnan Li, Victor Kim, Michael Cho, Peter J Castaldi, Craig Hersh, Edwin K Silverman, James D Crapo, Katerina Kechris, Russell P Bowler
BACKGROUND: Blood biomarkers are increasingly used to stratify high risk chronic obstructive pulmonary disease (COPD) patients; however, there are fewer studies that have investigated multiple biomarkers and replicated in multiple large well-characterized cohorts of susceptible current and former smokers. METHODS: We used two MSD multiplex panels to measure 9 cytokines and chemokines in 2123 subjects from COPDGene and 1117 subjects from SPIROMICS. These biomarkers included: interleukin (IL)-2, IL-6, IL-8, IL-10, tumor necrosis factor (TNF)-α, interferon (IFN)-γ, eotaxin/CCL-11, eotaxin-3/CCL-26, and thymus and activation-regulated chemokine (TARC)/CCL-17...
October 24, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29050978/chrysin-attenuates-atopic-dermatitis-by-suppressing-inflammation-of-keratinocytes
#9
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/29025731/macrophage-depletion-using-clodronate-liposomes-decreases-tumorigenesis-and-alters-gut-microbiota-in-the-aom-dss-mouse-model-of-colon-cancer
#10
Jackie E Bader, Reilly T Enos, Kandy T Velazquez, Meredith S Carson, Mitzi Nagarkatti, Prakash S Nagarkatti, Ioulia Chatzistamou, J Mark Davis, James A Carson, Cory Robinson, E Angela Murphy
We examined the role of macrophages in inflammation associated colorectal cancer (CRC). Given the emerging evidence on immune-microbiota interactions in CRC, we also sought to examine the interaction between macrophages and gut microbiota. To induce CRC, male C57BL/6 mice (n=32) received a single injection of azoxymethane (AOM) followed by three cycles of dextran sodium sulfate (DSS) supplemented water at weeks 1, 4, and 7, respectively. Prior to the final DSS cycle (week 7) and twice weekly until sacrifice, mice (n=16/group) received either 200μl i...
October 12, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28993767/genomic-programming-of-human-neonatal-dendritic-cells-in-congenital-systemic-and-in-vitro-cytomegalovirus-infection-reveal-plastic-and-robust-immune-pathway-biology-responses
#11
Widad Dantoft, Pablo Martínez-Vicente, James Jafali, Lara Pérez-Martínez, Kim Martin, Konstantinos Kotzamanis, Marie Craigon, Manfred Auer, Neil T Young, Paul Walsh, Arnaud Marchant, Ana Angulo, Thorsten Forster, Peter Ghazal
Neonates and especially premature infants are highly susceptible to infection but still can have a remarkable resilience that is poorly understood. The view that neonates have an incomplete or deficient immune system is changing. Human neonatal studies are challenging, and elucidating host protective responses and underlying cognate pathway biology, in the context of viral infection in early life, remains to be fully explored. In both resource rich and poor settings, human cytomegalovirus (HCMV) is the most common cause of congenital infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28987144/cancer-associated-fibroblasts-cafs-are-activated-in-cutaneous-basal-cell-carcinoma-and-in-the-peritumoural-skin
#12
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
#13
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
#14
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/28966510/effects-of-vitabridc-12-on-skin-inflammation
#15
Ji Hyun Lee, Yoon-Jae Jeon, Jung Hye Choi, Hae Young Kim, Tae-Yoon Kim
BACKGROUND: VitabridC(12) is newly developed and composed of vitamin C and Vitabrid (lamellar, hydrated zinc oxide). OBJECTIVE: In this study, we aimed to investigate the effects of VitabridC(12) on psoriasis and atopic dermatitis. METHODS: Mice with imiquimod-induced psoriasis or Dermatophagoides farinae-induced atopic dermatitis were applied with VitabridC(12). The effects of VitabridC(12) were evaluated by clinical features, histology, and immunologic features by examining cytokines and chemokines...
October 2017: Annals of Dermatology
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
#16
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/28956015/human-umbilical-cord-blood-derived-mesenchymal-stem-cells-ameliorate-psoriasis-like-skin-inflammation-in-mice
#17
Yun Sang Lee, Shyam Kishor Sah, Ji Hyun Lee, Kwang-Won Seo, Kyung-Sun Kang, Tae-Yoon Kim
Mesenchymal stem cells (MSCs) inhibit the proliferation or activation of lymphocytes, and their inhibitory effects do not require human leukocyte antigen (HLA)-matching because MSCs express low levels of HLA molecules. Therefore, MSCs may be able to regulate immune responses. In this study, we determined whether MSCs could inhibit psoriasis-like skin inflammation in mice. After induction of psoriasis-like skin inflammation using intradermal injection of IL-23 or topical application of imiquimod with or without treatment with MSC, mouse skins were collected, and H&E staining and real-time PCR were performed...
March 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28950145/determination-of-poor-prognostic-immune-features-of-tumour-microenvironment-in-non-smoking-patients-with-lung-adenocarcinoma
#18
Tomonari Kinoshita, Chie Kudo-Saito, Reiko Muramatsu, Tomonobu Fujita, Miyuki Saito, Haruna Nagumo, Toshiharu Sakurai, Shinobu Noji, Emi Takahata, Tomonori Yaguchi, Nobuo Tsukamoto, Yuichiro Hayashi, Kaoru Kaseda, Ikuo Kamiyama, Takashi Ohtsuka, Kenji Tomizawa, Masaki Shimoji, Tetsuya Mitsudomi, Hisao Asamura, Yutaka Kawakami
We have previously demonstrated that the prognostic significance of tumour-infiltrating CD8(+) T cells significantly differs according to histological type and patient smoking habits in non-small cell lung cancer (NSCLC). This work suggested that infiltrating CD8(+) T cells may not be activated sufficiently in the immunosuppressive microenvironment in non-smokers with adenocarcinoma. To understand the immunogenic microenvironment in NSCLC, we characterised immune cells comprehensively by performing an immunohistochemical evaluation using an alternative counting method and multicolour staining method (n = 234), and assessed immune-related gene expression by using genetic analytical approaches (n = 58)...
September 23, 2017: European Journal of Cancer
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/28932229/association-between-a-single-donor-tarc-ccl17-promotor-polymorphism-and-obstructive-chronic-lung-allograft-dysfunction-after-lung-transplantation
#20
Kevin Budding, Jessica van Setten, Eduard A van de Graaf, Oliver A van Rossum, Tineke Kardol-Hoefnagel, Erik-Jan D Oudijk, C Erik Hack, Henderikus G Otten
Lung transplantation (LTx) outcome is hampered by development of chronic rejection, often manifested as the bronchiolitis obliterans syndrome (BOS). Low serum levels of thymus and activation-regulated chemokine (TARC/CCL17), a chemoattractant, measured during the first month post-LTx are predictive for BOS development. Since TARC/CCL17 promotor polymorphisms correlate with serum TARC/CCL17 levels, we investigated seven single-nucleotide polymorphisms (SNPs) within this region and their potential association with LTx outcome...
2017: Frontiers in Immunology
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