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https://www.readbyqxmd.com/read/29675946/plasma-proteomics-identifies-a-chemokine-storm-in-idiopathic-multicentric-castleman-disease
#1
Sheila K Pierson, Aaron J Stonestrom, Dustin Shilling, Jason Ruth, Christopher S Nabel, Amrit Singh, Yue Ren, Katie Stone, Hongzhe Li, Frits van Rhee, David C Fajgenbaum
Human Herpesvirus-8 (HHV-8)-negative/idiopathic multicentric Castleman disease (iMCD) is a poorly understood disease involving polyclonal lymphoproliferation with dysmorphic germinal centers, constitutional symptoms, and multi-organ failure. Patients can experience thrombocytopenia, anasarca, reticulin fibrosis, renal dysfunction, organomegaly, and normal immunoglobulin levels, - iMCD-TAFRO. Others experience thrombocytosis, milder effusions, and hypergammaglobulinemia, -iMCD-Not Otherwise Specified (iMCD-NOS)...
April 20, 2018: American Journal of Hematology
https://www.readbyqxmd.com/read/29674128/diagnostic-value-of-cerebrospinal-fluid-cxcl13-for-acute-lyme-neuroborreliosis-a-systemic-review-and-meta-analysis
#2
REVIEW
Tobias Armin Rupprecht, Kirsi Marjaana Manz, Volker Fingerle, Christian Lechner, Matthias Klein, Markus Pfirrmann, Uwe Koedel
OBJECTIVES: The utility of cerebrospinal fluid (CSF) CXCL13 for diagnosis of acute Lyme neuroborreliosis (LNB) has been debated and the test is not yet routinely performed. This study's aim was to evaluate its overall diagnostic accuracy through meta-analysis. METHODS: Electronic searches in PubMed MEDLINE and Web of Science were performed to identify relevant articles published before January 2018. A summary receiver operating characteristic curve and an optimal cut-off were estimated modeling multiple cut-offs...
April 16, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29665320/reduced-lymphotoxin-beta-production-by-tumour-cells-is-associated-with-loss-of-follicular-dendritic-cell-phenotype-and-diffuse-growth-in-follicular-lymphoma
#3
Giuseppina Pepe, Arianna Di Napoli, Claudia Cippitelli, Stefania Scarpino, Emanuela Pilozzi, Luigi Ruco
Cytokine production is essential for follicular dendritic cell (FDC) maintenance and organization of germinal centres. In follicular lymphoma, FDCs are often disarrayed and may lack antigens indicative of terminal differentiation. We investigated the in situ distribution of cells producing lymphotoxin-beta (LTB), lymphotoxin-alpha (LTA), and tumour necrosis factor-alpha (TNFA) transcripts in human reactive lymph nodes and in follicular lymphomas with follicular or diffuse growth pattern. LTB was the cytokine most abundantly produced in germinal centres...
April 2018: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/29662631/overlap-at-the-molecular-and-immunohistochemical-levels-between-angioimmunoblastic-t-cell-lymphoma-and-a-subgroup-of-peripheral-t-cell-lymphomas-without-specific-morphological-features
#4
Rebeca Manso, Julia González-Rincón, Manuel Rodríguez-Justo, Giovanna Roncador, Sagrario Gómez, Margarita Sánchez-Beato, Miguel A Piris, Socorro M Rodríguez-Pinilla
The overlap of morphology and immunophenotype between angioimmunoblastic T-cell lymphoma (AITL) and other nodal peripheral T-cell lymphomas (n-PTCLs) is a matter of current interest whose clinical relevance and pathogenic background have not been fully established. We studied a series of 98 n-PTCL samples (comprising 57 AITL and 41 PTCL-NOS) with five TFH antibodies (CD10, BCL-6, PD-1, CXCL13, ICOS), looked for mutations in five of the genes most frequently mutated in AITL ( TET2 , DNMT3A, IDH2, RHOA and PLCG1 ) using the Next-Generation-Sequencing Ion Torrent platform, and measured the correlations of these characteristics with morphology and clinical features...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29661539/mir-548k-regulates-cxcl13-expression-in-myasthenia-gravis-patients-with-thymic-hyperplasia-and-in-jurkat-cells
#5
Jinpin Li, Di Qiu, Zezhi Chen, Weiwei Du, Jingli Liu, Xuean Mo
Myasthenia gravis (MG) is a B cell-mediated and T cell-dependent autoimmune disease. Thymic hyperplasia has great significance for MG pathogenesis and treatment. MicroRNAs (miRNAs) are a newly recognized type of gene expression regulatory factor that regulate gene expression at the post-transcriptional level. Additionally, miRNAs are involved in immune regulation of the thymus and the occurrence and development of autoimmune diseases. In this study, we found 33 miRNAs that were significantly dysregulated in thymic tissues from MG patients with thymus hyperplasia (MGH) compared with thymic tissues from normal controls using a miRNA microarray chip...
April 4, 2018: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29624878/elastographic-ultrasound-an-additional-image-tool-in-sj%C3%A3-gren-s-syndrome
#6
Eric Kimura-Hayama, Sergio Criales-Vera, Luis Azpeitia-Espinosa, Carlos Pacheco-Molina, Edgardo Reyes, Guadalupe Lima, Diego Hernandez-Ramirez, Luis Llorente, Gabriela Hernandez-Molina
AIM: To evaluate the stiffness of parotid and submandibular glands using elastography ultrasound and to correlate it with B-mode ultrasonographical, clinical and serological features, salivary profibrotic and inflammatory chemokines, and salivary gland fibrosis. METHODS: We performed B-mode and elastography ultrasound of major salivary glands of 26 patients with primary Sjögren's syndrome. We registered the shear wave velocity (SWV) and correlated it with the morphologic ultrasonographic changes assessed by the Hocevar scale...
April 6, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29617362/a-novel-approach-to-improve-immune-effector-responses-post-transplant-by-restoration-of-ccl21-expression
#7
Heather E Stefanski, Leslie Jonart, Emily Goren, James J Mulé, Bruce R Blazar
Chemotherapy or chemoradiotherapy conditioning regimens required for bone marrow transplantation (BMT) cause significant morbidity and mortality as a result of insufficient immune surveillance mechanisms leading to increased risks of infection and tumor recurrence. Such conditioning causes host stromal cell injury, impairing restoration of the central (thymus) and peripheral (spleen and lymph node) T cell compartments and slow immune reconstitution. The chemokine, CCL21, produced by host stromal cells, recruits T- and B-cells that provide lymphotoxin mediated instructive signals to stromal cells for lymphoid organogenesis...
2018: PloS One
https://www.readbyqxmd.com/read/29616024/simian-immunodeficiency-virus-siv-specific-chimeric-antigen-receptor-t-cells-engineered-to-target-b-cell-follicles-and-suppress-siv-replication
#8
Kumudhini Preethi Haran, Agnes Hajduczki, Mary S Pampusch, Gwantwa Mwakalundwa, Diego A Vargas-Inchaustegui, Eva G Rakasz, Elizabeth Connick, Edward A Berger, Pamela J Skinner
There is a need to develop improved methods to treat and potentially cure HIV infection. During chronic HIV infection, replication is concentrated within T follicular helper cells (Tfh) located within B cell follicles, where low levels of virus-specific CTL permit ongoing viral replication. We previously showed that elevated levels of simian immunodeficiency virus (SIV)-specific CTL in B cell follicles are linked to both decreased levels of viral replication in follicles and decreased plasma viral loads. These findings provide the rationale to develop a strategy for targeting follicular viral-producing (Tfh) cells using antiviral chimeric antigen receptor (CAR) T cells co-expressing the follicular homing chemokine receptor CXCR5...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29604186/the-clinical-efficacy-and-safety-of-baminercept-a-lymphotoxin-%C3%AE-receptor-fusion-protein-in-primary-sj%C3%A3-gren-s-syndrome-results-from-a-randomized-double-blind-placebo-controlled-phase-ii-trial
#9
E William St Clair, Alan N Baer, Chungwen Wei, Ghaith Noaiseh, Anne Parke, Andreea Coca, Tammy O Utset, Mark C Genovese, Daniel J Wallace, James McNamara, Karen Boyle, Lynette Keyes-Elstein, Jeffrey L Browning, Nathalie Franchimont, Kira Smith, Joel M Guthridge, Ignacio Sanz, Judith A James
OBJECTIVE: To evaluate the clinical efficacy and safety of baminercept, a lymphotoxin β receptor IgG fusion protein (LTβR-Ig), for the treatment of primary Sjögren's syndrome (SS) and explore its possible mechanisms of action. METHODS: In this multicenter trial, 52 patients with primary SS were randomized in a 2:1 ratio to receive subcutaneous injections of 100 mg of baminercept every week for 24 weeks or matching placebo. The primary endpoint was the change between screening and week 24 in stimulated whole salivary flow (SWSF)...
March 31, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29567125/point-of-care-testing-for-cxcl13-in-lyme-neuroborreliosis
#10
Annukka Pietikäinen, Jarmo Oksi, Jukka Hytönen
Cerebrospinal fluid chemokine (C-X-C motif) ligand 13 (CXCL13) is a marker for Lyme neuroborreliosis (LNB). CXCL13 lateral flow immunoassay (LFA) was compared with CXCL13 ELISA. CXCL13 LFA results correlated strongly with CXCL13 ELISA results. CXCL13 LFA is a rapid and easy-to-perform test, which is suitable for routine point-of-care diagnostics of suspected LNB patients.
February 23, 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29563728/aggressive-angioimmunoblastic-t-cell-lymphomas-aitl-with-soft-tissue-extranodal-mass-varied-histopathological-patterns-with-peripheral-blood-bone-marrow-and-splenic-involvement-and-review-of-literature
#11
Tanushri Mukherjee, Rajat Dutta, S Pramanik
Angioimmunoblastic T cell lymphoma (AITL) is a peripheral T cell non-Hodgkin lymphoma with an aggressive fatal course and it has varied clinical presentation with an uncommon presentation when they present as soft tissue masses or when there is spill in the peripheral blood or there are composite lymphomas that are rare presentations. Common presentations include lymphadenopathy, fever and systemic symptoms, hemolytic anemias, skin rashes, and rheumatoid arthritis. The classical histopathology is absence of follicles in lymph nodes with presence of high endothelial venules and the tumor cells of small to medium-sized lymphocytes with pale cytoplasm mixed with reactive T cells...
March 2018: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29556418/identification-of-sarilumab-pharmacodynamic-and-predictive-markers-in-patients-with-inadequate-response-to-tnf-inhibition-a-biomarker-substudy-of-the-phase-3-target-study
#12
Cem Gabay, Jérôme Msihid, Moshe Zilberstein, Caroline Paccard, Yong Lin, Neil M H Graham, Anita Boyapati
Introduction: Interleukin-6 (IL-6) orchestrates formation of an inflammatory pannus, leading to joint damage in rheumatoid arthritis (RA). Sarilumab is a human monoclonal antibody blocking the IL-6Rα. In TARGET (NCT01709578), a phase 3 study in adults with moderate-to-severe RA and inadequate response or intolerance to tumour necrosis factor inhibitors, subcutaneous sarilumab 200 mg or 150 mg every 2 weeks (q2w) plus conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) significantly reduced disease activity versus placebo plus csDMARDs...
2018: RMD Open
https://www.readbyqxmd.com/read/29541901/cxcl13-levels-in-serum-but-not-in-saliva-are-elevated-in-asian-indian-patients-with-primary-sj%C3%A3-gren-s-syndrome
#13
Santosh Kumar Mandal, Pulukool Sandhya, Jayakanthan Kabeerdoss, Janardana Ramya, Gowri Mahasampath, Debashish Danda
Human and animal model studies suggest CXCL13 is a potential biomarker in primary Sjögren's syndrome (pSS). CXCL13 has not been studied in Indian patients with pSS. pSS cases classified by American European Consensus Group (AECG) or American college of Rheumatology(ACR) 2012 criteria, attending rheumatology clinic between July 2014 and July 2015 were included. Hospital staff and healthy, non-blood related family members of patients constituted the control group. pSS cases underwent clinical evaluation, laboratory investigations, ESSDAI and ESSPRI scoring...
March 14, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29535739/role-of-tfh-cells-in-promoting-t-helper-17-induced-neuroinflammation
#14
James L Quinn, Gaurav Kumar, Agnieshka Agasing, Rose M Ko, Robert C Axtell
Both T cells and B cells are implicated in the pathology of multiple sclerosis (MS), but how these cells cooperate to drive disease remains unclear. Recent studies using experimental autoimmune encephalomyelitis (EAE) demonstrated that the TH17 pathway is correlated with increased numbers of ectopic B-cell follicles in the central nervous system (CNS). As follicular T helper (TFH) cells are regulators of B cell responses, we sought to examine the role of TFH cells in EAE induced by the transfer of myelin-specific TH17 cells (TH17-EAE)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29526821/heterodimer-formation-by-oct4-and-smad3-differentially-regulates-epithelial-to-mesenchymal-transition-associated-factors-in-breast-cancer-progression
#15
Gunjan Mandal, Subir Biswas, Sougata Roy Chowdhury, Annesha Chatterjee, Suman Purohit, Poulomi Khamaru, Sayan Chakraborty, Palash Kumar Mandal, Arnab Gupta, Jo-Anne de la Mare, Adrienne Lesley Edkins, Arindam Bhattacharyya
The multifunctional cytokine TGF-β crucially participates in breast cancer (BCa) metastasis and works differently in the disease stages, thus contributing in BCa progression. We address connections between TGF-β and the stem cell-related transcription factor (TF) Oct4 in BCa. In 147 BCa patients with infiltrating duct carcinoma, we identified a significantly higher number of cases with both moderate/high Oct4 expression and high TGF-β in late stages compared to early stages of the disease. In vitro studies showed that TGF-β elevated Oct4 expression, which in turn, regulated Epithelial-to-Mesenchymal transition (EMT)-regulatory gene (Snail and Slug) expression, migratory ability, chemotactic invasiveness and extracellular matrix (ECM) degradation potential of BCa cells...
March 8, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29520270/a-novel-role-for-c5a-in-b-1-cell-homeostasis
#16
Katharina Bröker, Julia Figge, Albert F Magnusen, Rudolf A Manz, Jörg Köhl, Christian M Karsten
B-1 cells constitute a unique subpopulation of lymphocytes residing mainly in body cavities like the peritoneal cavity (PerC) but are also found in spleen and bone marrow (BM). As innate-like B cells, they mediate first line immune defense through low-affinity natural IgM (nIgM) antibodies. PerC B-1 cells can egress to the spleen and differentiate into nIgM antibody-secreting plasma cells that recognize conserved exogenous and endogenous cellular structures. Homing to and homeostasis within the PerC are regulated by the chemokine CXCL13 released by PerC macrophages and stroma cells...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29518260/inflammatory-intrathecal-profiles-and-cortical-damage-in-multiple-sclerosis
#17
R Magliozzi, O W Howell, R Nicholas, C Cruciani, M Castellaro, C Romualdi, S Rossi, M Pitteri, M D Benedetti, A Gajofatto, F B Pizzini, S Montemezzi, S Rasia, R Capra, A Bertoldo, F Facchiano, S Monaco, R Reynolds, M Calabrese
OBJECTIVE: Grey matter (GM) damage and meningeal inflammation have been associated with early disease onset and a more aggressive disease course in Multiple Sclerosis (MS), but can these changes be identified in the patient early in the disease course? METHODS: To identify possible biomarkers linking meningeal inflammation, GM damage and disease severity, gene and protein expression were analysed in meninges and CSF from 27 post-mortem secondary progressive MS (SPMS) and 14 control cases...
March 8, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29507409/b-1a-lymphocytes-promote-oligodendrogenesis-during-brain-development
#18
Shogo Tanabe, Toshihide Yamashita
During brain development, the immune system mediates neurogenesis, gliogenesis and synapse formation. However, it remains unclear whether peripheral lymphocytes contribute to brain development. Here we identified the subtypes of lymphocytes that are present in neonatal mouse brains and investigated their functions. We found that B-1a cells, a subtype of B cells, were abundant in the neonatal mouse brain and infiltrated into the brain in a CXCL13-CXCR5-dependent manner. B-1a cells promoted the proliferation of oligodendrocyte-precursor cells (OPCs) in vitro, and depletion of B-1a cells from developing brains resulted in a reduction of numbers of OPCs and mature oligodendrocytes...
March 5, 2018: Nature Neuroscience
https://www.readbyqxmd.com/read/29503445/lymphatic-endothelial-cells-regulate-b-cell-homing-to-lymph-nodes-via-a-nik-dependent-mechanism
#19
Jie Yang, Siya Zhang, Lingyun Zhang, Xiaoping Xie, Hui Wang, Zuliang Jie, Meidi Gu, Jin-Young Yang, Xuhong Cheng, Shao-Cong Sun
B cells home to the lymph nodes (LNs) via high endothelial venules (HEVs) under the guidance of chemokines, particularly CXCL13. However, as CXCL13 is not directly made in HEVs, the molecular mechanism mediating B-cell homing to LNs has remained unclear. We show here that nuclear factor (NF)-κB-inducing kinase (NIK), a kinase mediating activation of the noncanonical NF-κB pathway, functions in lymphatic endothelial cells (LECs) to regulate B-cell homing to LNs. LEC-conditional deletion of NIK in mice did not affect the integrity or global function of lymphatic vessels but caused a severe reduction in the frequency of B cells in LNs...
March 5, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29501895/immune-profile-in-relation-to-sex-steroid-cyclicity-in-healthy-women-and-women-with-multiple-sclerosis
#20
Per Kempe, Daniel Eklund, Agnes Hallin, Mats Hammar, Tomas Olsson, Jan Brynhildsen, Jan Ernerudh
To prospectively study systemic in vivo immunological effects of sex hormones, using different phases of oral combined hormonal contraceptives (CHC), and the natural menstrual cycles in both healthy women and in women with multiple sclerosis (MS), blood samples from sixty female MS patients and healthy controls with and without CHC were drawn in high and low estrogenic/progestogenic phases. Expression of Th-associated genes in blood cells was determined by qPCR and a panel of cytokines and chemokines was measured in plasma...
March 1, 2018: Journal of Reproductive Immunology
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