keyword
MENU ▼
Read by QxMD icon Read
search

Bregs

keyword
https://www.readbyqxmd.com/read/28087671/induction-and-differentiation-of-il-10-producing-regulatory-b-cells-from-healthy-blood-donors-and-rheumatoid-arthritis-patients
#1
Zsuzsanna Bankó, Judit Pozsgay, Dániel Szili, Mária Tóth, Tamás Gáti, György Nagy, Bernadette Rojkovich, Gabriella Sármay
The most important feature of B cells is the production of Abs upon activation; additionally, B cells produce pro- and anti-inflammatory cytokines in response to certain stimuli. IL-10-producing B cells represent a major subset of regulatory B cells (Bregs) that suppress autoimmune and inflammatory responses. B cells play a crucial role in the development and maintenance of the chronic inflammatory autoimmune disease rheumatoid arthritis (RA); however, controversial data are available on IL-10- producing Bregs in RA...
January 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28042143/mesenchymal-stem-cells-ameliorate-b-cell-mediated-immune-responses-and-increase-il-10-expressing-regulatory-b-cells-in-an-ebi3-dependent-manner
#2
Kyung-Ah Cho, Jun-Kyu Lee, Yu-Hee Kim, Minhwa Park, So-Youn Woo, Kyung-Ha Ryu
Effector B cells are central contributors to the development of autoimmune disease by activating autoreactive T cells, producing pro-inflammatory cytokines and organizing ectopic lymphoid tissue. Conversely, IL-10-producing regulatory B (Breg) cells have pivotal roles in maintaining immunological tolerance and restraining excessive inflammation in autoinflammatory disease. Thus, regulating the equilibrium between antibody-producing effector B cells and Breg cells is critical for the treatment of autoimmune disease...
January 2, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28038394/increased-il-35-producing-tregs-and-cd19-il-35-cells-are-associated-with-disease-progression-in-leprosy-patients
#3
Mohd Tarique, Chaman Saini, Raza Ali Naqvi, Neena Khanna, D N Rao
BACKGROUND: The clinical forms of leprosy consist of a spectrum that reflects the host's immune response to the M. leprae; it provides an ideal model to study the host pathogen interaction and immunological dysregulation in humans. IL-10 and TGF-β producing Tregs are high in leprosy patients and responsible for immune suppression and M. leprae specific T cells anergy. In leprosy, involvement of IL-35 producing Tregs and Bregs remain unstudied. OBJECTIVE: To study the role of IL-35 producing Tregs and Bregs in the human leprosy...
December 27, 2016: Cytokine
https://www.readbyqxmd.com/read/28008635/regulatory-b-cell-is-critical-in-bone-union-process-through-suppressing-proinflammatory-cytokines-and-stimulating-foxp3-in-treg-cells
#4
Guojing Sun, Yicun Wang, Yunfan Ti, Jun Wang, Jianning Zhao, Hongbo Qian
Bone fractures may result in delayed union (DU) or non-union (NU). Evidence suggest that the skewing of the immune system toward the proinflammatory type is a contributing factor. Because B cells were previously found to infiltrate the fracture healing site at abundant levels, we examined the regulatory B cells (Bregs) in DU/NU patients. In bone fracture patients with normal healing, the frequency of interleukin (IL)-10-expressing B cells was significantly upregulated in the early healing process (6 weeks post-surgery) and was downregulated later on (18 weeks post-surgery), whereas in DU/NU patients, the early upregulation of IL-10-expressing B cells was missing...
December 23, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27995618/foxd3-suppresses-il-10-expression-in-b-cells
#5
Yu Zhang, Zhiding Wang, He Xiao, Xiaoling Liu, Gaizhi Zhu, Dandan Yu, Gencheng Han, Guojiang Chen, Chunmei Hou, Ning Ma, Beifen Shen, Yan Li, Tianxiao Wang, Renxi Wang
IL-10(+) regulatory B cells (Bregs) play an important role in restraining excessive inflammatory responses by secreting IL-10. However, it is still unclear what key transcription factors determines Breg differentiation. Thus, we explore what transcription factor plays a key role in the expression of IL-10, a pivotal cytokine in Bregs. We used two kinds of web-based prediction software to predict transcription factors binding the IL-10 promoter and found that IL-10 promoter had many binding sites for Foxd3. Chip-PCR assay demonstrated that Foxd3 directly binds the predicted binding sites around the start codon upstream by -1400 bp...
December 20, 2016: Immunology
https://www.readbyqxmd.com/read/27995616/b-cell-subsets-are-modulated-during-allergic-airway-inflammation-but-are-not-required-for-the-development-of-respiratory-tolerance-in-a-murine-model
#6
Anika Habener, Ann-Kathrin Behrendt, Jelena Skuljec, Adan Chari Jirmo, Almut Meyer-Bahlburg, Gesine Hansen
Allergic asthma is a widespread chronic inflammatory disease of the airways. The role of different B-cell subsets in developing asthma and respiratory tolerance is not well-known. Especially regulatory B (Breg) cells are proposed to be important in asthma regulation. Using wildtype (WT) and B-cell-deficient (μMT) mice we investigated how B-cells are affected by induction of allergic airway inflammation and respiratory tolerance and whether they are necessary to develop these conditions. WT mice with an asthma-like phenotype, characterized by increased airway hyperreactivity, eosinophilic airway inflammation, mucus hypersecretion and elevated Th2 cytokines, exhibited increased MHCII and CD23 expression on follicular mature B-cells in lung, bronchial lymph nodes (bLN) and spleen, which contributed to allergen-specific T-cell proliferation in vitro...
December 20, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27956762/tolerance-in-kidney-transplantation-what-is-on-the-b-side
#7
REVIEW
Laura Carreras-Planella, Francesc E Borràs, Marcella Franquesa
Regulatory B cells (Breg) are in the spotlight for their role in immune homeostasis maintenance and tolerance achievement as in the last years the correlation with functional and increased Breg numbers in autoimmune diseases and transplantation has been extensively proven. Their study is, however, in its infancy with still little knowledge and consensus on their origin, phenotype, and mechanism of action. All this hampers the pursuit of an effective Breg induction method for therapeutic purposes. In this review we aim to summarize the studies on human Breg and their implication in kidney transplantation and to further discuss the issues surrounding therapeutic applications of this cell subset...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27878329/the-role-of-regulatory-b-cells-in-digestive-system-diseases
#8
REVIEW
Zhenyu Zhou, Lei Gong, Xiaoyun Wang, Zhen Hu, Gaojue Wu, Xuejun Tang, Xiaobin Peng, Shuan Tang, Miao Meng, Hui Feng
INTRODUCTION: The past decade has provided striking insights into a newly identified subset of B cells known as regulatory B cells (Bregs). In addition to producing antibody, Bregs also regulate diseases via cytokine production and antigen presentation. This subset of B cells has protective and potentially therapeutic effects. However, the particularity of Bregs has caused some difficulties in conducting research on their roles. Notably, human B10 cells, which are Bregs that produce interleukin 10, share phenotypic characteristics with other previously defined B cell subsets, and currently, there is no known surface phenotype that is unique to B10 cells...
November 22, 2016: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/27865860/human-regulatory-b-cells-control-the-tfh-cell-response
#9
Achouak Achour, Quentin Simon, Audrey Mohr, Jean-François Séité, Pierre Youinou, Boutahar Bendaoud, Ibtissem Ghedira, Jacques-Olivier Pers, Christophe Jamin
BACKGROUND: Follicular helper T (TFH) cells support terminal B-cell differentiation. Human regulatory B (Breg) cells modulate cellular responses, but their control of TFH cell-dependent humoral immune responses is unknown. OBJECTIVE: We sought to assess the role of Breg cells on TFH cell development and function. METHODS: Human T cells were polyclonally stimulated in the presence of IL-12 and IL-21 to generate TFH cells. They were cocultured with B cells to induce their terminal differentiation...
November 16, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27825134/interleukin-13-suppresses-interleukin-10-via-inhibiting-a20-in-peripheral-b-cells-of-patients-with-food-allergy
#10
Ming-Yang Li, Min Zhu, En-Qiang Linghu, Fan Feng, Bing Zhu, Cheng Wu, Ming-Zhou Guo
The regulatory B cells (Breg) are important in the body immunity. The differentiation process of Breg is not fully understood yet. Ubiquitin A20 has immune regulatory functions. This study aims to investigate the role of A20 in the regulation of interleukin (IL)-10 in B cells. In this study, B cells were isolated from the peripheral blood samples of healthy subjects and patients with food allergy (FA). The B cells were analyzed by flow cytometry, real time RT-PCR, Western blotting and chromatin immunoprecipitation...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27821578/regulatory-b-cells-induce-formation-of-il-10-expressing-t-cells-in-mice-with-autoimmune-neuroinflammation
#11
Andrea Pennati, Spencer Ng, Yuanqiang Wu, Jordan R Murphy, Jiusheng Deng, Srikant Rangaraju, Seneshaw Asress, Jennifer L Blanchfield, Brian Evavold, Jacques Galipeau
: Although B cells are traditionally known for their role in propagating proinflammatory immune responses, their immunosuppressive effects have only recently begun to be appreciated. How these regulatory B cells (Bregs) suppress the immune response remains to be worked out in detail. In this article, we show that Bregs can induce the formation of conventional FoxP3(+) regulatory T cells (Tregs), as well as a more recently described CD49b(+)CD223(+) regulatory T-cell subset, known as type 1 regulatory T cells (Tr1s)...
December 14, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27817178/roles-of-regulatory-t-and-b-cells-in-igg4-related-disease
#12
Kazushige Uchida, Kazuichi Okazaki
Immunoglobulin G4 (IgG4) -related disease (RD) is a newly recognized systemic disease. Although there are several forms of IgG4-RD reported under various names, depending on the target organ and characteristics, patients with IgG4-RD manifest several immunologic and histologic abnormalities including increased levels of serum IgG4 and storiform fibrosis with infiltration of lymphocytes and IgG4-positive plasmacytes in the involved organs. However, the pathophysiology remains unclear. Regulatory immune cells play an important role in several immune-related diseases...
November 6, 2016: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/27806875/immune-regulatory-effects-of-high-dose-vitamin-d3-supplementation-in-a-randomized-controlled-trial-in-relapsing-remitting-multiple-sclerosis-patients-receiving-ifn%C3%AE-the-solarium-study
#13
Anne-Hilde Muris, Joost Smolders, Linda Rolf, Marielle Thewissen, Raymond Hupperts, Jan Damoiseaux
Multiple sclerosis (MS) is characterized by a disturbed immune homeostasis and low serum vitamin D levels are associated with an increased disease activity. While vitamin D has been hypothesized to promote the maintenance of immune homeostasis, vitamin D supplementation could be of benefit to patients with MS. The SOLAR study investigated the effects of high dose vitamin D3 supplementation on clinical outcomes in a randomized controlled trial. Here we present the immune regulatory effects, investigated in the SOLARIUM sub-study...
November 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27782313/cytotoxic-epstein-barr-virus-positive-large-b-cell-lymphoma-a-regulatory-b-cell-derived-neoplasia
#14
Valentina Tabanelli, Vanessa Santiago-Pacheco, Mario Corbellino, Angelica Calleri, Claudio Agostinelli, Carlo Parravicini, Stefano A Pileri
AIMS: A new subtype of granzyme B (GrB)-producing regulatory B cells (Bregs ) has been described recently; these peculiar cytotoxic B cells are increased significantly in interleukin (IL)-21-rich settings, and in particular during HIV and Epstein-Barr virus (EBV) infection. Our aim is to report a unique case of an EBV-positive diffuse large B cell lymphoma (DLBCL) with cytotoxic features arisen in an HIV(+) patient, and to understand if this lesion may represent a proliferation of neoplastic cytotoxic Bregs ...
October 26, 2016: Histopathology
https://www.readbyqxmd.com/read/27762298/pd-l1-is-a-critical-mediator-of-regulatory-b-cells-and-t-cells-in-invasive-breast-cancer
#15
Honggeng Guan, Yuqiu Wan, Jing Lan, Qin Wang, Zhangyu Wang, Yecheng Li, Jiqing Zheng, Xueguang Zhang, Zemin Wang, Yueping Shen, Fang Xie
Regulatory T cells (Tregs), a key mediator in regulating anti-tumor immune suppression, tumor immune escape, metastasis and relapse, are considered an important therapeutic target in immunotherapy of human cancers. In the present investigation, elevated CD19(+) CD24(+) CD38(+) regulatory B cells (Bregs) were observed in PBMCs of invasive carcinoma of breast (IBCa) patients compared with that in patients with fibroadenoma (FIBma) or healthy individuals, and the positive correlation existed between Bregs and CD4(+) CD25(+) CD127(-) Tregs (r = 0...
October 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27752370/barrett-s-oesophagus-in-an-achalasia-patient-immunological-analysis-and-comparison-with-a-group-of-achalasia-patients
#16
Samuel Torres-Landa, Janette Furuzawa-Carballeda, Enrique Coss-Adame, Miguel A Valdovinos, Edgar Alejandro-Medrano, Bárbara Ramos-Ávalos, Braulio Martínez-Benítez, Gonzalo Torres-Villalobos
The aim of the study was to characterize the presence of diverse CD4 and CD8 T cell subsets and regulatory cells in peripheral blood and lower oesophageal sphincter (LES) from a young patient with BE/achalasia without treatment versus achalasia group. In order to characterize the circulating cells in this patient, a cytometric analysis was performed. LES tissue was evaluated by double-immunostaining procedure. Five healthy blood donors, 5 type achalasia patients, and 5 oesophagus tissue samples (gastrooesophageal junction) from transplant donors were included as control groups...
2016: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/27734415/the-immunobiology-of-interleukin-35-and-its-regulation-and-gene-expression
#17
Mei Song, Xiaojing Ma
Interleukin-35 (IL-35) is the latest addition to the IL-12 family of heterodimeric cytokines, consisting of IL-12 p35 subunit and IL-27β subunit Epstein-Barr virus induced 3 (EBI3). Since its discovery, IL-35 has been shown to exhibit immunosuppressive activities which are distinct from other members of IL-12 family. IL-35 is also unique in that it is expressed primarily by regulatory T-cells (Tregs) rather than by antigen-presenting cells (APCs). IL-35 can directly suppress effector T-cell proliferation and function and inhibit the differentiation of Th17 cells...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27693622/biosynthesis-purification-and-characterization-of-%C3%AE-1-4-xylanase-from-a-novel-mangrove-associated-actinobacterium-streptomyces-olivaceus-msu3-and-its-applications
#18
Muthusamy Sanjivkumar, TamilSelvan Silambarasan, Arunachalam Palavesam, Grasian Immanuel
The present study was undertaken to evaluate the xylanolytic properties of an actinobacterium Streptomyces olivaceus (MSU3) isolated from the sediment sample of mangrove environment. It showed highest xylanase activity on initial screening in Breg's mineral salts medium supplemented with 0.5% xylan. Further the organism expressed maximum xylanase production at optimized culture conditions of pH 7, temperature 30 °C with 2.5% of inoculum size at 72 h of incubation, the nutrient sources like sucrose (2%) and yeast extract (3%) have observed as best carbon and nitrogen sources respectively...
September 28, 2016: Protein Expression and Purification
https://www.readbyqxmd.com/read/27679683/immunomodulation-by-mesenchymal-stem-cells-interplay-between-mesenchymal-stem-cells-and-regulatory-lymphocytes
#19
EDITORIAL
Oscar Ka-Fai Ma, Koon Ho Chan
Mesenchymal stem cells (MSCs) possess immunomodulatory properties, which confer enormous potential for clinical application. Considerable evidence revealed their efficacy on various animal models of autoimmune diseases, such as multiple sclerosis, systemic lupus erythematosus and uveitis. MSCs elicit their immunomodulatory effects by inhibiting lymphocyte activation and proliferation, forbidding the secretion of proinflammatory cytokines, limiting the function of antigen presenting cells, and inducing regulatory T (Treg) and B (Breg) cells...
September 26, 2016: World Journal of Stem Cells
https://www.readbyqxmd.com/read/27670221/advances-in-the-pathophysiology-of-primary-immune-thrombocytopenia
#20
María Perera, Teresa Garrido
OBJECTIVES: Classically, immune thrombocytopenia (ITP) was thought to be caused by the destruction and insufficient production of platelets, as mediated by autoantibodies. More recently other immune mechanisms that contribute to the disease have been discovered. This review attempts to address the main unresolved questions in ITP. METHODS: We review the most current knowledge of the pathophysiology of ITP. Immunological effects of available therapies are also described...
January 2017: Hematology (Amsterdam, Netherlands)
keyword
keyword
116576
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"