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https://www.readbyqxmd.com/read/28238806/rat-acute-gvhd-is-th1-driven-and-characterized-by-predominant-donor-cd4-t-cell-infiltration-of-skin-and-gut
#1
Margherita Boieri, Pranali Shah, Dasaradha Jalapothu, Olena Zaitseva, Lutz Walter, Bent Rolstad, Christian Naper, Ralf Dressel, Marit Inngjerdingen
Acute graft-versus-host disease (aGvHD) remains a significant hurdle to successful treatment of many hematological disorders. The disease is caused by infiltration of allo-activated donor T cells primarily into the gastrointestinal tract and skin. While cytotoxic T cells mediate direct cellular damage, T helper (Th) cells differentially secrete immunoregulatory cytokines. Acute GvHD is thought to be primarily initiated by Th1 cells but a consensus is still lacking regarding the role of Th2 and Th17 cells. The aim of this study was to determine the contribution of distinct T cell subsets to aGvHD in the rat...
February 23, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28237728/recognition-of-viral-and-self-antigens-by-th1-and-th1-th17-central-memory-cells-in-patients-with-multiple-sclerosis-reveals-distinct-roles-in-immune-surveillance-and-relapses
#2
Moira Paroni, Virginia Maltese, Marco De Simone, Valeria Ranzani, Paola Larghi, Chiara Fenoglio, Anna M Pietroboni, Milena A De Riz, Maria C Crosti, Stefano Maglie, Monica Moro, Flavio Caprioli, Riccardo Rossi, Grazisa Rossetti, Daniela Galimberti, Massimiliano Pagani, Elio Scarpini, Sergio Abrignani, Jens Geginat
BACKGROUND: Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) that is caused by autoreactive T cells and associated with viral infections. However, the phenotype of pathogenic T cells in peripheral blood remains to be defined, and how viruses promote MS is debated. OBJECTIVE: We aimed to identify and characterize potentially pathogenic autoreactive T cells, as well as protective antiviral T cells, in patients with MS...
February 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28236279/oas-gene-family-expression-is-associated-with-hiv-related-neurocognitive-disorders
#3
C Sanfilippo, M R Pinzone, D Cambria, A Longo, M Palumbo, R Di Marco, F Condorelli, G Nunnari, L Malaguarnera, M Di Rosa
HIV-associated neurocognitive disorders are common in HIV-infected individuals, even in the combination antiretroviral therapy (c-ART) era. Several mechanisms are involved in neuronal damage, including chronic inflammation immune activation. Mammalian 2'-5'-oligoadenylate synthetase (OAS) genes are produced in response to interferon (IFN), mainly by monocytes, and exert their antiviral functions by activation of RNase L that degrades viral and cellular RNAs. In this study, we aimed at exploring OAS gene family RNA expression in simian immunodeficiency virus encephalitis (SIVE), in HIV-associated neurocognitive disorders (HAND), and in HIV-associate dementia (HAD)...
February 24, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28229280/posterior-urethral-valve-in-fetuses-evidence-for-the-role-of-inflammatory-molecules
#4
Érica Leandro Marciano Vieira, Natalia Pessoa Rocha, Fernando Macedo Bastos, Kátia Daniela da Silveira, Alamanda K Pereira, Eduardo Araújo Oliveira, Débora Marques de Miranda, Ana Cristina Simões E Silva
BACKGROUND: The aim of this cross-sectional study was to investigate inflammatory biomarkers in urine samples of 24 fetuses with posterior urethral valve (PUV) collected at 22 ± 4 weeks of gestation and to compare the findings with measurements in urine samples of 22 male healthy preterm neonates at 23 ± 4 weeks (control group). METHODS: Inflammatory biomarkers in urine were measured using a cytometric bead array [interleukin (IL)-2, IL-4, IL-6, IL-10, interferon (IFN)-γ, soluable tumor necrosis factor receptor (TNFR) 1, sTNFR2, monocyte chemoattractant protein-1/chemokine ligand 2 (MCP-1/CCL2), eotaxin/CCL11 and interferon gamma-induced protein/10/C-X-C motif chemokine 10 (IP-10/CXCL10)] and ELISA assays [TNF, IL-8/CXCL8 and transforming growth factor-beta (TGF-β)]...
February 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28223347/intact-pneumococci-trigger-transcription-of-interferon-related-genes-in-human-monocytes-while-fragmented-autolyzed-bacteria-subvert-this-response
#5
Susann Skovbjerg, Rickard Nordén, Anna Martner, Ebba Samuelsson, Lars Hynsjö, Agnes E Wold
A peculiar trait of pneumococci (Streptococcus pneumoniae) is their propensity to undergo spontaneous lysis during stationary growth due to activation of the enzyme autolysin (LytA) that fragments the peptidoglycan cell wall. The fragments that are generated upon autolysis impair phagocytosis and reduce production of IL-12 and IFN-γ by human leukocytes in response to intact pneumococci, thereby impeding crucial host defenses. The objective was to identify additional monocyte genes whose transcription is induced by intact pneumococci, and subverted by autolyzed bacteria...
February 21, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28222766/increased-cortical-lesion-load-and-intrathecal-inflammation-is-associated-with-oligoclonal-bands-in-multiple-sclerosis-patients-a-combined-csf-and-mri-study
#6
Gabriele Farina, Roberta Magliozzi, Marco Pitteri, Richard Reynolds, Stefania Rossi, Alberto Gajofatto, Maria Donata Benedetti, Francesco Facchiano, Salvatore Monaco, Massimiliano Calabrese
BACKGROUND: Although IgG oligoclonal bands (OCBs) in the cerebrospinal fluid (CSF) are a frequent phenomenon in multiple sclerosis (MS) patients, their relationship with grey matter lesions, intrathecal/meningeal inflammation and clinical evolution has not been clarified yet. The aim of our study was to assess the relationship between the OCBs, the inflammatory/neurodegenerative CSF profile at diagnosis, the cortical lesion load and the clinical evolution after 10 years. METHODS: This is a 10-year observational, cross-sectional study based on a combined MRI, cognitive and CSF profiling of the examined patients...
February 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28222329/inflammatory-chemokines-and-their-receptors-in-human-visceral-leishmaniasis-gene-expression-profile-in-peripheral-blood-splenic-cellular-sources-and-their-impact-on-trafficking-of-inflammatory-cells
#7
Neetu Singh, Shyam Sundar
Chemokines play an important role in determining cellular composition at inflammatory sites, and as such, influence disease outcome. In this study, we investigated the expression profile and splenic cellular source of various inflammatory chemokines and their receptors in human visceral leishmaniasis (VL). The expression of chemokines or their receptors was measured at the gene and protein level by employing real time qPCR and a cytometric bead array assay, respectively. In addition, the cellular source of chemokines and their receptors in the spleen was identified employing gene expression analyses in sequentially selected cell subsets...
February 18, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28221173/new-developments-in-transplant-proteomics
#8
Julie Ho, Patricia Hirt-Minkowski, John A Wilkins
PURPOSE OF REVIEW: Despite modern immunosuppression, renal allograft rejection remains a major contributor to graft loss. Novel biomarkers may help improve posttransplant outcomes through the early detection and treatment of rejection. Our objective is to provide an overview of proteomics, review recent discovery-based rejection studies, and explore innovative approaches in biomarker development. RECENT FINDINGS: Urine MMP7 was identified as a biomarker of subclinical and clinical rejection using two-dimensional liquid chromatography tandem-mass spectrometry (LC-MS/MS) and improved the overall diagnostic discrimination of urine CXCL10 : Cr alone for renal allograft inflammation...
February 17, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28215986/the-%C3%AE-4galt1-affects-the-fibroblast-like-synoviocytes-invasion-in-rheumatoid-arthritis-by-modifying-n-linked-glycosylation-of-cxcr3
#9
Chi Sun, Xinhui Zhu, Tao Tao, Dongmei Zhang, Yi Wang, Hua Xu, Yunli Ren, Youhua Wang
OBJECTIVE: The level of β-1,4-galactosyltransferase 1 (β4GalT1) is up-regulated in collagen-induced arthritis (CIA) mice. It is reported that CXC chemokine receptor 3 (CXCR3) can enhance the invasiveness of fibroblast-like synoviocytes (FLS) in rheumatoid arthritis (RA). This study aims to investigate the specific mechanism of β4GalT1 and relationship between β4GalT1 and CXCR3 in RA. METHODS: The model of CIA mice was established to explore the role of β4GalT1...
February 10, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28214365/peripheral-blood-leukocytes-show-differential-expression-of-tumour-progression-related-genes-in-colorectal-cancer-patients-who-have-a-postoperative-intra-abdominal-infection-a-prospective-matched-cohort-study
#10
S Alonso, X Mayol, L Nonell, S Salvans, M Pascual, M Pera
AIM: Anastomotic leak is associated with higher rates of recurrence after surgery for colorectal cancer. However, the mechanisms responsible are unknown. We hypothesized that the infection-induced inflammatory response may induce overexpression of tumour progression-related genes in immune cells. The aim was to investigate the effect of postoperative intra-abdominal infection on the gene expression patterns of peripheral blood leukocytes (PBL) after surgery for colorectal cancer. METHODS: Prospective matched cohort study...
February 18, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28210256/transcriptomic-analysis-of-the-innate-antiviral-immune-response-in-porcine-intestinal-epithelial-cells-influence-of-immunobiotic-lactobacilli
#11
Leonardo Albarracin, Hisakazu Kobayashi, Hikaru Iida, Nana Sato, Tomonori Nochi, Hisashi Aso, Susana Salva, Susana Alvarez, Haruki Kitazawa, Julio Villena
Lactobacillus rhamnosus CRL1505 and Lactobacillus plantarum CRL1506 are immunobiotic strains able to increase protection against viral intestinal infections as demonstrated in animal models and humans. To gain insight into the host-immunobiotic interaction, the transcriptomic response of porcine intestinal epithelial (PIE) cells to the challenge with viral molecular associated pattern poly(I:C) and the changes in the transcriptomic profile induced by the immunobiotics strains CRL1505 and CRL1506 were investigated in this work...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28209986/nf-%C3%AE%C2%BAb-signaling-regulates-cell-autonomous-regulation-of-cxcl10-in-breast-cancer-4t1-cells
#12
Won Jong Jin, Bongjun Kim, Darong Kim, Hea-Young Park Choo, Hong-Hee Kim, Hyunil Ha, Zang Hee Lee
The chemokine CXCL10 and its receptor CXCR3 play a role in breast cancer metastasis to bone and osteoclast activation. However, the mechanism of CXCL10/CXCR3-induced intracellular signaling has not been fully investigated. To evaluate CXCL10-induced cellular events in the mouse breast cancer cell line 4T1, we developed a new synthetic CXCR3 antagonist JN-2. In this study, we observed that secretion of CXCL10 in the supernatant of 4T1 cells was gradually increased during cell growth. JN-2 inhibited basal and CXCL10-induced CXCL10 expression and cell motility in 4T1 cells...
February 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28209774/methyl-donor-supplementation-alters-cognitive-performance-and-motivation-in-female-offspring-from-high-fat-diet-fed-dams
#13
Sarah E McKee, Nicola M Grissom, Christopher T Herdt, Teresa M Reyes
During gestation, fetal nutrition is entirely dependent on maternal diet. Maternal consumption of excess fat during pregnancy has been linked to an increased risk of neurologic disorders in offspring, including attention deficit/hyperactivity disorder, autism, and schizophrenia. In a mouse model, high-fat diet (HFD)-fed offspring have cognitive and executive function deficits as well as whole-genome DNA and promoter-specific hypomethylation in multiple brain regions. Dietary methyl donor supplementation during pregnancy or adulthood has been used to alter DNA methylation and behavior...
February 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28206670/altered-expression-of-cxcr3-and-ccr6-and-their-ligands-in-htlv-1-carriers-and-ham-tsp-patients
#14
Houshang Rafatpanah, Mehdi Felegari, Mahmoud Reza Azarpazhooh, Rosita Vakili, Taraneh Rajaei, Ian Hampson, Golmahossein Hassanshahi, Narges Valizadeh, Sina Gerayli, Hamid Farjifard, Shadi Zamanian, Farzad MollaHosseini, Seyed Abdolrahim Rezaee
Recruitment of leukocytes by chemokines and chemokine receptors to CNS plays a crucial role in the induction of inflammatory response in HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). In the present study, chemokine and chemokine receptors involved in trafficking of lymphocytes to the CNS were measured in HAM/TSP patients, HTLV-1 asymptomatic carriers (ACs), and healthy controls. The PVL, CCR6 and CXCR3 mRNA expression, and CXCL9 and CXCL10 protein levels were measured in all subjects...
February 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28192616/association-of-ormdl3-with-rhinovirus-induced-endoplasmic-reticulum-stress-and-type-i-interferon-responses-in-human-leukocytes
#15
Yi-Ping Liu, Victoria Rajamanikham, Marissa Baron, Sagar Patel, Sameer K Mathur, Elizabeth A Schwantes, Carole Ober, Daniel J Jackson, James E Gern, Robert F Lemanske, Judith A Smith
BACKGROUND: Children with risk alleles at the 17q21 genetic locus who wheeze during rhinovirus illnesses have a greatly increased likelihood of developing childhood asthma. In mice, overexpression of the 17q21 gene ORMDL3 leads to airway remodeling and hyper-responsiveness. However, the mechanisms by which ORMDL3 predisposes to asthma are unclear. Previous studies have suggested that ORMDL3 induces endoplasmic reticulum (ER) stress and production of the type I interferon (IFN) regulated chemokine CXCL10...
February 13, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28187734/the-potential-neuroprotective-role-of-a-histone-deacetylase-inhibitor-sodium-butyrate-after-neonatal-hypoxia-ischemia
#16
Joanna Jaworska, Malgorzata Ziemka-Nalecz, Joanna Sypecka, Teresa Zalewska
BACKGROUND: Histone deacetylase inhibitor (HDACi), sodium butyrate (SB), has been shown to be neuroprotective in adult brain injury models. Potential explanation for the inhibitor action involves among others reduced inflammation. We therefore anticipated that SB will provide a suitable option for brain injury in immature animals. The aim of our study was to test the hypothesis that one of the mechanisms of protection afforded by SB after neonatal hypoxia-ischemia is associated with anti-inflammatory action...
February 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28176846/prediction-of-biomarkers-of-oral-squamous-cell-carcinoma-using-microarray-technology
#17
Guang Li, Xian Li, Meng Yang, Lvzi Xu, Shixiong Deng, Longke Ran
Microarray data is used to screen the genes of oral squamous cell carcinoma (OSCC). Microarray data of OSCC and normal tissues were downloaded from GEO database and analyzed with Benjamini-Hochberg (BH) method. Differentially expressed genes (DEGs) were then uploaded on DAVID database to process enrichment analysis. Target genes were finally chosen for verification experiment in vitro and in vivo. 78 DEGs were selected from 54676 genes, including 46 up- and 32 down- regulation. GO term showed that these genes were related to epidermal growth (biological processes), extracellular region (cellular components) and cytokines activity (molecular function)...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28167945/tlr7-and-tlr3-sense-brucella-abortus-rna-to-induce-proinflammatory-cytokine-production-but-they-are-dispensable-for-host-control-of-infection
#18
Priscila C Campos, Marco Túlio R Gomes, Erika S Guimarães, Gabriela Guimarães, Sergio C Oliveira
Brucella abortus is a Gram-negative, facultative intracellular bacterium that causes brucellosis, a worldwide zoonotic disease leading to undulant fever in humans and abortion in cattle. The immune response against this bacterium relies on the recognition of microbial pathogen-associated molecular patterns, such as lipoproteins, lipopolysaccharides, and DNA; however, the immunostimulatory potential of B. abortus RNA remains to be elucidated. Here, we show that dendritic cells (DCs) produce significant amounts of IL-12, IL-6, and IP-10/CXCL10, when stimulated with purified B...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28167306/non-receptor-type-proline-rich-protein-tyrosine-kinase-2-pyk2-is-a-possible-therapeutic-target-for-kawasaki-disease
#19
Chinatsu Suzuki, Akihiro Nakamura, Noriko Miura, Kunityoshi Fukai, Naohito Ohno, Tomoyo Yahata, Akiko Okamoto-Hamaoka, Maiko Fujii, Ayako Yoshioka, Yuki Kuchitsu, Kazuyuki Ikeda, Kenji Hamaoka
Kawasaki disease (KD) is a paediatric vasculitis whose pathogenesis remains unclear. Based on experimental studies using a mouse model for KD, we report here that proline-rich protein tyrosine kinase 2 (Pyk2) plays a critical role in the onset of KD-like murine vasculitis. The mouse model for KD was prepared by administrating a Candida albicans water-soluble fraction (CAWS).Unlike CAWS-treated WT mice, CAWS-treated Pyk2-Knockout (Pyk2-KO) mice did not develop apparent vasculitis. A sustained increase in MIG/CXCL9 and IP-10/CXCL10, both of which have potent "angiostatic" activity, was observed in CAWS-treated Pyk2-KO mice...
February 3, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28161477/sequential-transmigration-of-polymorphonuclear-cells-and-naive-cd3-t-lymphocytes-across-the-blood-cerebrospinal-fluid-barrier-in-vitro-following-infection-with-echovirus-30
#20
Tobias Dahm, Franziska Frank, Ortwin Adams, Holger A Lindner, Hiroshi Ishikawa, Christel Weiss, Christian Schwerk, Horst Schroten, Tobias Tenenbaum, Henriette Rudolph
Viral meningitis by non-polio enteroviruses (NPEV) is a major public health burden causing fatal outcomes especially in the younger population. Strong evidence exists that the blood-cerebrospinal-fluid (CSF) barrier (BCSFB) serves as an entry point for enterovirus and leucocytes into the central nervous system (CNS). Moreover, analysis of clinical CSF specimens of patients with a NPEV infection revealed a predominance of polymorphonuclear granulocytes (PMN) in the early phase and mononuclear cells in the later course of meningitis...
February 1, 2017: Virus Research
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