keyword
MENU ▼
Read by QxMD icon Read
search

Breg

keyword
https://www.readbyqxmd.com/read/28211345/regulatory-t-and-b-cells-in-asthmatic-women-variations-from-pregnancy-to-postpartum
#1
C Martins, J Lima, G Nunes, L M Borrego
BACKGROUND AND OBJECTIVE: Allergic asthma and rhinitis are common in pregnancy. The immune mechanisms underlying the effects of asthma on pregnancy and vice versa are not completely understood. The aim of this study was to investigate changes in regulatory T and B cells in asthmatic women from late pregnancy to postpartum. METHODS: Four groups of women were enrolled for this study: asthmatic (n=23) and healthy (n=43) third trimester-pregnant women and asthmatic (n=33) and healthy (n=35) nonpregnant women...
2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28199852/b-cell-activating-factor-baff-selects-il-10-b-cells-over-il-10-b-cells-during-inflammatory-responses
#2
Ning Ma, Yu Zhang, Qilin Liu, Zhiding Wang, Xiaoling Liu, Gaizhi Zhu, Dandan Yu, Gencheng Han, Guojiang Chen, Chunmei Hou, Tianxiao Wang, Yuanfang Ma, Beifen Shen, Yan Li, He Xiao, Renxi Wang
B cell activating factor (BAFF) regulates B cell maturation, survival, function, and plays a critical pathogenic role in autoimmune diseases. It remains unclear how BAFF affects IL-10(-)B cells versus regulatory B cells (Bregs) in inflammatory responses. In this study, we found that IL-10-expressing Bregs decreased in lupus-prone MRL/lpr mice and experimental allergic encephalomyelitis (EAE) mice. On blockade of the effects of BAFF with TACI-IgG, IL-10(+) Bregs were upregulated in MRL/lpr and EAE mice. In addition, BAFF expanded IL-10(+)B cells over IL-10(-)B cells under noninflammatory conditions in vitro, whereas it expanded IL-10(-)B cells over IL-10(+)B cells during inflammatory responses, such as stimulation with autoantigen and LPS...
February 12, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28183330/th17-and-cd24-hi-cd27-regulatory-b-lymphocytes-are-biomarkers-of-response-to-biologics-in-rheumatoid-arthritis
#3
Sarah Salomon, Caroline Guignant, Pierre Morel, Gauthier Flahaut, Clément Brault, Clément Gourguechon, Patrice Fardellone, Jean-Pierre Marolleau, Brigitte Gubler, Vincent Goëb
BACKGROUND: The aim was to describe the regulatory B and T cells (Breg and Treg) and T helper 17 (Th17) lymphocytes before and under treatment with biologic drugs, and to assess their potential predictive value as biomarkers of response in rheumatoid arthritis (RA). METHODS: This was a non-randomised, single-centre, prospective study. Patients with active RA (American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) 2010) who required the initiation or switch to any biologic drug except rituximab were included...
February 10, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28150448/ppar-%C3%AE-agonist-ameliorates-liver-pathology-accompanied-by-increasing-regulatory-b-and-t-cells-in-high-fat-diet-mice
#4
Zhipeng Xu, Gang Wang, Yuxiao Zhu, Ran Liu, Jingwei Song, Yangyue Ni, Hongzhi Sun, Bingya Yang, Min Hou, Lin Chen, Minjun Ji, Zan Fu
OBJECTIVE: Peroxisome proliferator-activated receptor (PPAR)-γ plays critical roles in human metabolic disorders. However, the mechanism remains incompletely understood. Regulatory cells contribute to these metabolic improvements; therefore, whether PPAR-γ agonist regulates regulatory cells was investigated. METHODS: C57BL/6J mice received a normal or high-fat diet (HFD) with or without pioglitazone treatment. Mice were sacrificed for detecting the metabolic parameters...
February 2, 2017: Obesity
https://www.readbyqxmd.com/read/28148914/rheumatoid-arthritis-defective-il-10-producing-breg-cells
#5
Dario Ummarino
No abstract text is available yet for this article.
February 2, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28124981/mechanisms-of-regulatory-b-cell-function-in-autoimmune-and-inflammatory-diseases-beyond-il-10
#6
REVIEW
Avijit Ray, Bonnie N Dittel
In the past two decades it has become clear that in addition to antigen presentation and antibody production B cells play prominent roles in immune regulation. While B cell-derived IL-10 has garnered much attention, B cells also effectively regulate inflammation by a variety of IL-10-independent mechanisms. B cell regulation has been studied in both autoimmune and inflammatory diseases. While collectively called regulatory B cells (Breg), no definitive phenotype has emerged for B cells with regulatory potential...
January 23, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28110075/tlr9-mediated-regulatory-b10-cell-amplification-following-sub-total-body-irradiation-implications-in-attenuating-eae
#7
Jinsheng Hong, Jie Fang, Ruilong Lan, Qi Tan, Yeping Tian, Mei Zhang, Paul Okunieff, Lurong Zhang, Jianhua Lin, Deping Han
Autoimmunity and inflammation are controlled in part by regulatory B (Breg) cells, including the recently identified IL-10-competent B10 cell subset that represents 1%-3% of mouse spleen B cells. In this study, the influence of irradiation on Breg/B10 cell generation and IL-10 production mediated by TLR9 signaling pathways was investigated. Spleen and peritoneal cavity Breg/B10 cell frequencies were significantly expanded three weeks after sub-total body irradiation (sub-TBI, 5Gy or 10Gy) in adult male wild type (WT) C57BL/6(B6) mice but not in TLR9(-/-) mice...
March 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28103916/tim-1-defines-a-human-regulatory-b-cell-population-that-is-altered-in-frequency-and-function-in-systemic-sclerosis-patients
#8
Octavio Aravena, Ashley Ferrier, Madhvi Menon, Claudia Mauri, Juan Carlos Aguillón, Lilian Soto, Diego Catalán
BACKGROUND: Systemic sclerosis (SSc) is a systemic autoimmune disease characterized by excessive production of extracellular matrix by fibroblasts on skin and internal organs. Although Th2 cells have been involved in fibroblast stimulation, hyperactivated B cells may also play an important role. Regulatory B cells (Bregs) are cells capable of inhibiting inflammatory responses and controlling autoimmune diseases. Although many Breg populations have in common the ability to produce high amounts of IL-10, a unique surface marker defining most human Bregs is lacking...
January 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28102055/role-of-regulatory-cells-in-oral-tolerance
#9
REVIEW
Marcin Wawrzyniak, Liam O'Mahony, Mübeccel Akdis
The immune system is continuously exposed to great amounts of different antigens from both food and intestinal microbes. Immune tolerance to these antigens is very important for intestinal and systemic immune homeostasis. Oral tolerance is a specific type of peripheral tolerance induced by exposure to antigen via the oral route. Investigations on the role of intestinal immune system in preventing hypersensitivity reactions to innocuous dietary and microbial antigens have been intensively performed during the last 2 decades...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28100001/transplantation-tolerance-don-t-forget-about-the-b-cells
#10
REVIEW
Anita S Chong, Stella H Khiew
Establishing a state of transplantation tolerance that leads to indefinite graft survival without the need for lifelong immunosuppression has been successfully achieved in limited numbers of transplant recipients in the clinic. These successes led to studies aimed at identifying potential biomarkers that diagnose allograft tolerance and identify the patients most amenable to drug minimization, and implicated an enriched B cell signature of tolerance. The emergence of a specialized subset of regulatory B cell (Bregs) that possess immune-modulatory function in inflammation and autoimmune disease, raised the possibility that Bregs play critical roles in the promotion of transplantation tolerance and that Bregs are the underlying explanation for the B cell signature of tolerance...
January 18, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28095355/immune-regulatory-network-in-successful-pregnancy-and-reproductive-failures
#11
REVIEW
Mahnaz Ghaebi, Mohammad Nouri, Aliyeh Ghasemzadeh, Laya Farzadi, Farhad Jadidi-Niaragh, Majid Ahmadi, Mehdi Yousefi
Maternal immune system must tolerate semiallogenic fetus to establish and maintain a successful pregnancy. Despite the existence of several strategies of trophoblast to avoid recognition by maternal leukocytes, maternal immune system may react against paternal alloantigenes. Leukocytes are important components in decidua. Not only T helper (Th)1/Th2 balance, but also regulatory T (Treg) cells play an important role in pregnancy. Although the frequency of Tregs is elevated during normal pregnancies, their frequency and function are reduced in reproductive defects such as recurrent miscarriage and preeclampsia...
January 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28087671/induction-and-differentiation-of-il-10-producing-regulatory-b-cells-from-healthy-blood-donors-and-rheumatoid-arthritis-patients
#12
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
#13
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
#14
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
#15
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-interleukin-10-expression-in-b-cells
#16
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
Interleukin-10-positive (IL-10(+) ) regulatory B (Breg) cells play an important role in restraining excessive inflammatory responses by secreting IL-10. However, it is still unclear what key transcription factors determine Breg cell differentiation. Hence, we explore what transcription factor plays a key role in the expression of IL-10, a pivotal cytokine in Breg cells. We used two types 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...
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
#17
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 wild-type (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 hyper reactivity, 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
#18
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
#19
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
#20
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
keyword
keyword
43920
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"