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https://www.readbyqxmd.com/read/29453859/diminished-cxcr5-expression-in-peripheral-blood-of-patients-with-sj%C3%A3-gren-s-syndrome-may-relate-to-both-genotype-and-salivary-gland-homing
#1
Lara A Aqrawi, Margarita Ivanchenko, Albin Björk, Jorge I Ramírez Sepúlveda, Juliana Imgenberg-Kreuz, Marika Kvarnström, Philipp Haselmayer, Janicke Liaaen Jensen, Gunnel Nordmark, Karine Chemin, Kathrine Skarstein, Marie Wahren-Herlenius
Genetic investigations of Sjögren's syndrome (SS) have identified a susceptibility locus at p23.3 of chromosome 11, which contains the CXCR5 gene. CXCR5 is a chemokine receptor expressed on B and T cell subsets, and binds the chemotactic ligand CXCL13. We here aimed to link the genetic association with functional effects and explore the CXCR5/CXCL13 axis in SS. Expression quantitative trait loci analysis of the 11q23.3 locus was performed using B cell mRNA expression data from genotyped individuals. Lymphocyte surface markers were assessed by flow cytometry, and CXCL13 levels by a proximity extension assay...
February 17, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29437871/gut-microbiota-modulate-t-cell-trafficking-into-human-colorectal-cancer
#2
Eleonora Cremonesi, Valeria Governa, Jesus Francisco Glaus Garzon, Valentina Mele, Francesca Amicarella, Manuele Giuseppe Muraro, Emanuele Trella, Virginie Galati-Fournier, Daniel Oertli, Silvio Raffael Däster, Raoul A Droeser, Benjamin Weixler, Martin Bolli, Raffaele Rosso, Ulrich Nitsche, Nina Khanna, Adrian Egli, Simone Keck, Julia Slotta-Huspenina, Luigi M Terracciano, Paul Zajac, Giulio Cesare Spagnoli, Serenella Eppenberger-Castori, Klaus-Peter Janssen, Lubor Borsig, Giandomenica Iezzi
OBJECTIVE: Tumour-infiltrating lymphocytes (TILs) favour survival in human colorectal cancer (CRC). Chemotactic factors underlying their recruitment remain undefined. We investigated chemokines attracting T cells into human CRCs, their cellular sources and microenvironmental triggers. DESIGN: Expression of genes encoding immune cell markers, chemokines and bacterial 16S ribosomal RNA (16SrRNA) was assessed by quantitative reverse transcription-PCR in fresh CRC samples and corresponding tumour-free tissues...
February 6, 2018: Gut
https://www.readbyqxmd.com/read/29435977/characterization-of-mesenchymal-stem-stromal-cells-with-lymphoid-tissue-organizer-cell-potential-in-tonsils-from-children
#3
Alejandro Prados, Raquel Muñoz-Fernández, Pablo Fernandez-Rubio, Enrique G Olivares
Lymphoid tissue organizer (LTo) cells, identified in mouse and human embryos, are thought to be precursors of stromal cells in secondary lymphoid organs. Whether LTo cells are present in human adults, however remains unknown. We obtained 15 stromal cell lines from tonsils from children who underwent tonsillectomy, and studied the antigen phenotype of these tonsil stromal cell (TSC) lines by flow cytometry and RT-PCR. Cell lines met the minimal criteria proposed by the International Society for Cellular Therapy to define human mesenchymal stem/stromal cells (MSCs): plastic-adherent capacity; expression of CD73, CD90 and CD105, lack of CD45, CD19 and HLA-DR; and capacity to differentiate into adipocytes, osteoblasts and chondrocytes...
February 12, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29419731/inflammatory-alteration-of-human-t-cells-exposed-continuously-to-asbestos
#4
REVIEW
Naoko Kumagai-Takei, Shoko Yamamoto, Suni Lee, Megumi Maeda, Hidenori Masuzzaki, Nagisa Sada, Min Yu, Kei Yoshitome, Yasumitsu Nishimura, Takemi Otsuki
Asbestos is a known carcinogen and exposure can lead to lung cancer and malignant mesothelioma. To examine the effects of asbestos fibers on human immune cells, the human T cell leukemia/lymphoma virus (HTLV)-1 immortalized human T cell line MT-2 was employed. Following continuous exposure to asbestos fibers for more than eight months, MT-2 sublines showed acquisition of resistance to asbestos-induced apoptosis with decreased death signals and increased surviving signals. These sublines showed various characteristics that suggested a reduction in anti-tumor immunity...
February 8, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29417587/hyperactive-gp130-stat3-driven-gastric-tumourigenesis-promotes-submucosal-tertiary-lymphoid-structure-development
#5
David G Hill, Liang Yu, Hugh Gao, Jesse J Balic, Alison West, Hiroko Oshima, Louise McLeod, Masanobu Oshima, Awen Gallimore, Kimberley D'Costa, Prithi S Bhathal, William Sievert, Richard L Ferrero, Brendan J Jenkins, Gareth W Jones
Tertiary lymphoid structures (TLSs) display phenotypic and functional characteristics of secondary lymphoid organs, and often develop in tissues affected by chronic inflammation, as well as in certain inflammation-associated cancers where they are prognostic of improved patient survival. However, the mechanisms that govern the development of tumour-associated TLSs remain ill-defined. Here, we observed tumour-associated TLSs in a preclinical mouse model (gp130F/F ) of gastric cancer, where tumourigenesis is dependent on hyperactive STAT3 signalling through the common IL-6 family signalling receptor, gp130...
February 8, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29397812/-ccl2-protein-regulates-migration-and-invasion-of-thp-1-cells-by-autosecreting-inflammatory-chemokines
#6
Dan Hong, Qing Yan, Jin Yang, Jian Pan, Jian-Nong Cen, Su-Ning Chen, Shao-Yan Hu
OBJECTIVE: To investigate the effects and mechanism of CCL2 on the migration and invasion of human leukemia cell THP-1. METHODS: The CCL2 gene was recombined with the transfer plasmid-PLVX and transfected into THP-1 cells. The CCL2 expression at RNA level was detected by RT-PCR, the CCL2 expression at protein level was determined by Western blot and ELISA, the influence of overexpression of CCL2 recombinant protein and THP-1 cells on the migration and invasion ability of THP-1 cells was analyzed by transwell migration and invasion tests, the PCR-array of migration-related cytokines was used to clarify the patential mechanism...
February 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29396045/expression-of-the-b-cell-differentiation-factor-baff-and-chemokine-cxcl13-in-a-murine-model-of-respiratory-syncytial-virus-infection
#7
Wael Alturaiki, Amanda J McFarlane, Katie Rose, Rachel Corkhill, Paul S McNamara, Jürgen Schwarze, Brian F Flanagan
Innate immune responses are known to influence the subsequent development of adaptive immunity. We have previously shown that RSV infection of human airway epithelial cells results in production of the B cell growth factor, BAFF. To better understand how the airway responds to RSV infection by production of this and other factors to support or enhance local B cell responses to infection, we analysed the lung expression of BAFF and B cell homeostatic chemokines CXCL12, CXCL13, CCL19 and CCL21 in a murine model of RSV infection...
January 26, 2018: Cytokine
https://www.readbyqxmd.com/read/29384862/plasma-soluble-factor-following-two-decades-prolonged-suppressive-antiretroviral-therapy-in-hiv-1-positive-males-a-cross-sectional-study
#8
Maike Sperk, Wang Zhang, Piotr Nowak, Ujjwal Neogi
Acute human immunodeficiency virus (HIV) infection is associated with a marked induction of several pathways that are linked to inflammation and CD4 T-cell depletion. Many of these processes do not fully resolve on short-term combination antiretroviral therapy (cART) (<5 years), despite complete and durable suppression of viremia. The effects of long-term (>15 years) successful antiretroviral therapy (ART) and the linkage between levels of biomarkers remain unclear. Therefore, the present study aims to assess the host plasma proteome in a well-defined clinical material from HIV-1-positive male patients on successful long-term ART (>15 years) and compared them with age-matched healthy controls and treatment-naïve male patients with viremia in a cross-sectional manner...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29381995/cxcl13-and-th1-th2-cytokines-in-the-serum-and-cerebrospinal-fluid-of-neurosyphilis-patients
#9
Yongxing Yan, Jun Wang, Bin Qu, Yan Zhang, Yingnan Wei, Huili Liu, Chunli Wu
Neurosyphilis is a chronic infectious disease with involvement of central nervous system infection by Treponema pallidum. This study was to investigate the contents of B lymphocyte chemokine 1 (BLC-1/chemokine [C-X-C motif] ligand 13), Th1 cytokines (Interleukin [IL]-2, IL-12, and Interferon [IFN]-γ), and Th2 cytokines (IL-6 and IL-10) in serum and cerebrospinal fluid (CSF) of HIV-negative patients with neurosyphilis before and after treatment, aiming to elucidate roles of CXCL13 and Th1/Th2 cytokines in immune response to and pathogenesis of neurosyphilis...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29378619/chromosome-conformation-signatures-define-predictive-markers-of-inadequate-response-to-methotrexate-in-early-rheumatoid-arthritis
#10
Claudio Carini, Ewan Hunter, Aroul S Ramadass, Jayne Green, Alexandre Akoulitchev, Iain B McInnes, Carl S Goodyear
BACKGROUND: There is a pressing need in rheumatoid arthritis (RA) to identify patients who will not respond to first-line disease-modifying anti-rheumatic drugs (DMARD). We explored whether differences in genomic architecture represented by a chromosome conformation signature (CCS) in blood taken from early RA patients before methotrexate (MTX) treatment could assist in identifying non-response to DMARD and, whether there is an association between such a signature and RA specific expression quantitative trait loci (eQTL)...
January 29, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29364468/correlations-between-cxcl13-il-24-genes-and-wrist-arthritis
#11
G Zhao, J-Y Mi, X-Y Pan, X Zhang, Y-J Rui
OBJECTIVE: To investigate the relationship between B lymphocyte chemokine 1 (CXCL13) and interleukin-24 (IL-24) gene and wrist arthritis. PATIENTS AND METHODS: A total of 122 cases of patients with wrist arthritis treated in our hospital from May 2013 to April 2016 were randomly selected as wrist arthritis group, while 120 normal subjects were selected as normal control group. Venous blood was collected from all patients in normal control group and wrist arthritis group, respectively...
January 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29343447/altered-b-lymphocyte-homeostasis-and-functions-in-systemic-sclerosis
#12
REVIEW
Alexandra Forestier, Thomas Guerrier, Mathieu Jouvray, Jonathan Giovannelli, Guillaume Lefèvre, Vincent Sobanski, Carine Hauspie, Eric Hachulla, Pierre-Yves Hatron, Hélène Zephir, Patrick Vermersch, Myriam Labalette, David Launay, Sylvain Dubucquoi
Beyond the production of autoantibodies, B-cells are thought to play a role in systemic sclerosis (SSc) by secreting proinflammatory/profibrotic cytokines. B-cells are a heterogeneous population with different subsets distinguished by their phenotypes and cytokine production. Data about B-cell subsets, cytokine production and intracellular pathways leading to this production are scarce in SSc. The aim of our study was to describe B-cell homeostasis, activation, proliferation, cytokine production in B-cells and serum and B-cell intracellular signaling pathways in SSc...
January 14, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29340592/neuroimmunomodulators-in-neuroborreliosis-and-lyme-encephalopathy
#13
Elizabeth A Eckman, Javier Pacheco-Quinto, Aimee R Herdt, John J Halperin
Background: Lyme encephalopathy, characterized by non-specific neurobehavioral symptoms including mild cognitive difficulties, may occur in patients with systemic Lyme disease and is often mistakenly attributed to CNS infection. Identical symptoms occur in innumerable other inflammatory states and may reflect the effect of systemic immune mediators on the CNS. Methods: Multiplex immunoassays were used to characterize the inflammatory profile in serum and CSF from Lyme and non-Lyme patients with a range of symptoms to determine if there are specific markers of active CNS infection (neuroborreliosis), or systemic inflammatory mediators associated with neurobehavioral syndromes...
January 11, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29338586/association-of-cxcl13-serum-level-and-ultrasonographic-findings-of-joints-in-patients-with-systemic-lupus-erythematosus-and-jaccoud-s-arthropathy
#14
D Sá Ribeiro, C F Lins, V Galvão, W G Dourado Santos, G Rosa, V Machicado, A L Pedreira, E P da Fonseca, A P Mota Duque Souza, C Baleeiro, L G Ferreira, I Silva de Oliveira, J P Cotrim Gama da Silva, A M Atta, M B Santiago
Objectives The objective of this paper is to perform an ultrasonography (US) analysis of hands and wrists in two groups of patients with systemic lupus erythematosus (SLE), with and without Jaccoud's arthropathy, matched by age and disease duration and to correlate them with levels of CXCL13 clinical features, laboratory tests and disease activity score. Methods Sixty-four patients with SLE were enrolled, 32 with and 32 without Jaccoud's arthropathy. Each patient underwent physical examination, laboratory tests (including CXCL13 by ELISA) and bilateral US...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29310341/the-correlational-research-among-serum-cxcl13-levels-circulating-plasmablasts-and-memory-b-cells-in-patients-with-systemic-lupus-erythematosus-a-strobe-compliant-article
#15
Chenglong Fang, Tingting Luo, Ling Lin
We investigated whether serum CXC ligand 13 protein (CXCL13) levels correlate with the circulating plasmablasts and memory B-cells alteration in systemic lupus erythematosus (SLE) patients. The diagnostic use of CXCL13 concentrations in active lupus was also analyzed.A total of 36 SLE patients and 18 healthy controls were included. Serum CXCL13 levels were examined by enzyme-linked immunosorbent assay. The frequency and absolute count of circulating plasmablasts and memory B cells were analyzed by flow cytometry...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29288471/chemokines-cxcl10-cxcl11-and-cxcl13-in-acute-disseminated-encephalomyelitis-non-polio-enterovirus-aseptic-meningitis-and-neuroborreliosis-cxcl10-as-initial-discriminator-in-diagnostic-algorithm
#16
Lorna Stemberger Maric, Snjezana Zidovec Lepej, Lana Gorenec, Ivana Grgic, Vladimir Trkulja, Oktavija Dakovic Rode, Srdan Roglic, Tonci Grmoja, Nina Barisic, Goran Tesovic
We investigated potential diagnostic usefulness of serum and cerebrospinal fluid (CSF) concentrations of chemokines CXCL10, CXCL11, and CXCL13 in pediatric patients with acute disseminated encephalomyelitis (ADEM) (n = 23), non-polio enterovirus aseptic meningitis (NPEV AM) (n = 20), and neuroborreliosis (NB) (n = 21) and children with acute infectious diseases with neurological symptoms but with excluded neuroinfection/neuroinflammation (controls, n = 20). CSF levels of CXCL10 and CXCL11 were higher in patients with NPEV AM than those in other children, and CXCL10 levels showed a high discriminative potential (area under the receiver operating characteristic curve, ROC, 0...
December 29, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29279549/recent-progress-in-the-understanding-of-angioimmunoblastic-t-cell-lymphoma
#17
Manabu Fujisawa, Shigeru Chiba, Mamiko Sakata-Yanagimoto
Angioimmunoblastic T-cell lymphoma (AITL) has been classified as a subtype of mature T-cell neoplasms. The recent revision of the WHO classification proposed a new category of nodal T-cell lymphoma with follicular helper T (TFH)-cell phenotype, which was classified into three diseases: AITL, follicular T-cell lymphoma, and nodal peripheral T-cell lymphoma with TFH phenotype. These lymphomas are defined by the expression of TFH-related antigens, CD279/PD-1, CD10, BCL6, CXCL13, ICOS, SAP, and CXCR5. Although recurrent mutations in TET2, IDH2, DNMT3A, RHOA, and CD28, as well as gene fusions, such as ITK-SYK and CTLA4-CD28, were not diagnostic criteria, they may be considered as novel criteria in the near future...
2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/29279354/germinal-centers-determine-the-prognostic-relevance-of-tertiary-lymphoid-structures-and-are-impaired-by-corticosteroids-in-lung-squamous-cell-carcinoma
#18
Karina Silina, Alex Soltermann, Farkhondeh Movahedian Attar, Ruben Casanova, Zina M Uckeley, Helen Thut, Muriel Wandres, Sergejs Isajevs, Phil F Cheng, Alessandra Curioni Fontecedro, Periklis Foukas, Mitchell P Levesque, Holger Moch, Aija Linē, Maries van den Broek
In solid tumors, the presence of lymph node-like structures called tertiary lymphoid structures (TLS) is associated with improved patient survival. However, little is known about how TLS form in cancer, how their function affects survival, and whether they are affected by cancer therapy. In this study, we used multi-spectral microscopy, quantitative pathology and gene expression profiling to analyze TLS formation in human lung squamous cell carcinoma (LSCC) and in an experimental model of lung TLS induction...
December 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/29277634/a-sensitive-flow-cytometric-method-for-multi-parametric-analysis-of-microrna-messenger-rna-and-protein-in-single-cells
#19
Chunfai Lai, Dariusz Stepniak, Leslie Sias, Castle Funatake
Analysis of RNA expression in mixed cell populations often requires laborious and costly cell sorting. Here we describe a flow cytometric assay that combines antibody staining and in situ hybridization for multi-parametric analysis of single cells. This method, referred to as the PrimeFlowTM RNA Assay, enables simultaneous detection of protein markers and RNA targets in mixed cell populations. Both coding and non-coding RNA sequences can be measured with a limit of detection of approximately 10 copies of mRNA and 20 copies of microRNA per cell...
December 19, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/29261512/lncrna-part1-modulates-toll-like-receptor-pathway-to-influence-cell-proliferation-and-apoptosis-in-prostate-cancer-cells
#20
Ming Sun, Donghua Geng, Shuqiang Li, Zhaofu Chen, Wenyan Zhao
We investigated thoroughly the effect of lncRNA PART1 on prostate cancer cells proliferation and apoptosis, through regulating Toll-like receptor (TLR) pathways. LncRNA PART1 expression was also examined by qRT-PCR in human tissues and cells lines LNCaP and PC3. After transfection with si-PART1 or control constructs, the cell viability was measured by MTS and colony formation assay. In addition, the apoptosis rate of the prostate cancer cells was validated by TUNEL staining. Relationships between lncRNA PART1 expression and TLR pathway genes were demonstrated by qRT-PCR and Western blotting...
June 27, 2017: Biological Chemistry
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