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Il-10+ B cells

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https://www.readbyqxmd.com/read/28344594/articular-inflammation-induced-by-an-enzymatically-inactive-lys49-phospholipase-a2-activation-of-endogenous-phospholipases-contributes-to-the-pronociceptive-effect
#1
Renata Gonçalves Dias, Sandra Coccuzzo Sampaio, Morena Brazil Sant'Anna, Fernando Queiroz Cunha, José María Gutiérrez, Bruno Lomonte, Yara Cury, Gisele Picolo
BACKGROUND: Arthritis is a set of inflammatory conditions that induce aching, stiffness, swelling, pain and may cause functional disability with severe consequences to the patient's lives. These are multi-mediated pathologies that cannot be effectively protected and/or treated. Therefore, the aim of this study was to establish a new model of acute arthritis, using a Lys49-PLA2 (Bothrops asper myotoxin II; MT-II) to induce articular inflammation. METHODS: The articular inflammation was induced by MT-II (10 μg/joint) injection into the left tibio-tarsal or femoral-tibial-patellar joints...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28344320/dpp4-truncated-gm-csf-il-3-manifest-distinct-receptor-binding-regulatory-functions-compared-to-their-full-length-forms
#2
H A O'Leary, M Capitano, S Cooper, C Mantel, H S Boswell, R Kapur, B Ramdas, R Chan, L Deng, C-K Qu, H E Broxmeyer
Dipeptidylpeptidase 4 (DPP4/CD26) enzymatically cleaves select penultimate amino acids of proteins, including colony stimulating factors (CSFs), and has been implicated in cellular regulation. To better understand the role of DPP4 regulation of hematopoiesis, we analyzed the activity of DPP4 on the surface of immature blood cells and then comparatively assessed the interactions and functional effects of full-length (FL) and DPP4 truncated factors [(T)-GM-CSF and- IL-3] on both in vitro and in vivo models of normal and leukemic cells...
March 27, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28344059/gastrointestinal-toxicity-systemic-inflammation-and-liver-biochemistry-in-allogeneic-haematological-stem-cell-transplantation
#3
K Jordan, P Pontoppidan, H Uhlving, K Kielsen, D G Burrin, S Weichendorff, I J Christensen, M H Jørgensen, C Heilmann, H Sengeløv, K Müller
INTRODUCTION: Liver toxicity is frequently seen in relation to allogeneic hematopoietic stem cell transplantation (HSCT), but pathogenesis and the risk factors are poorly understood. The purpose of this study was to investigate associations between liver toxicity, gastrointestinal toxicity and levels of immune regulating cytokines during the early post-transplant period. METHODS: We prospectively included 81 children and adults undergoing HSCT after myeloablative conditioning...
March 23, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28341819/interleukin-23-receptor-gene-variants-in-acute-lymphoblastic-leukemia-and-their-relation-to-prognostic-factors
#4
Mohammadrasul Zareinejad, Afshin Samiei, Behnaz Valibeigi, Tahereh Gholami, Soheila Zareifar, Zahra Amirghofran
BACKGROUND: Interleukin (IL)-23 has an important role in tumor immune regulation. OBJECTIVE: To investigate the possible association of interleukin-23 receptor (IL23R) gene variants rs1884444, rs10889677 and rs11209026 with development of acute lymphoblastic leukemia (ALL). METHODS: The IL23R variants were studied in 164 ALL patients and compared to 175 healthy controls by polymerase chain reaction-restriction fragment length polymorphism...
March 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28341757/elevated-serum-levels-of-scd30-and-il-6-and-detectable-il-10-precede-classical-hodgkin-lymphoma-diagnosis
#5
Lynn I Levin, Elizabeth C Breen, Brenda M Birmann, Julie L Batista, Larry I Magpantay, Yuanzhang Li, Richard F Ambinder, Nancy E Mueller, Otoniel Martínez-Maza
BACKGROUND: We investigated whether an immune system environment characterized by elevated serum levels of B-cell activation molecules was associated with the subsequent development of classical Hodgkin lymphoma (cHL). METHODS: We measured serum levels of B cell stimulatory cytokines, interleukin (IL)-6 and IL-10, soluble CD30 (sCD30) and total IgE prior to cHL diagnosis in 103 cases and 206 matched controls with archived specimens in the DoD Department of Defense Serum Repository...
March 24, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28339915/the-effect-of-feed-supplementation-with-zakarpacki-zeolite-clinoptilolite-on-percentages-of-t-and-b-lymphocytes-and-cytokine-concentrations-in-poultry
#6
Lukasz Jarosz, Dagmara Stepien-Pysniak, Zbigniew Gradzki, Malgorzata Kapica, Agata Gacek
The available literature lacks information on the effect of Zakarpacki zeolite (clinoptilolite) on the immune system of poultry. Therefore, the aim of this study was to determine the effect of this zeolite on selected indicators of the immune response in poultry by evaluating the expression of cluster of differentiation ( ) surface molecules on T and B lymphocytes and the concentration of IL-2 and IL-10 in the blood. Ninety one-day-old Ross 308 broiler chicks were used in the study. The birds were divided into 3 groups of 30 each...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28326080/characterization-of-the-highly-prevalent-regulatory-cd24-hi-cd38-hi-b-cell-population-in-human-cord-blood
#7
Ana Esteve-Solé, Irene Teixidó, Angela Deyà-Martínez, Jordi Yagüe, Ana M Plaza-Martín, Manel Juan, Laia Alsina
The newborn's immune system must transition from a sterile haploidentical uterus to the world full of antigens. Regulatory B-cells (Breg; broadly defined as CD19(+)CD24(hi)CD38(hi)) are tolerance promoters in the adult immune system. They can inhibit IFN-γ and IL-17 production by T-cells and are essential in different conditions, including pregnancy. Breg have still not been well characterized in umbilical cord blood, where we hypothesize that they are pivotal in the achievement of tolerance. We studied CD19(+)CD24(hi)CD38(hi) Breg in healthy umbilical cord blood (hUCB) compared to healthy peripheral adult blood (hAPB)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28321221/leishmania-donovani-nucleoside-hydrolase-nh36-domains-induce-t-cell-cytokine-responses-in-human-visceral-leishmaniasis
#8
Micheli Luize Barbosa Santos, Dirlei Nico, Fabrícia Alvisi de Oliveira, Aline Silva Barreto, Iam Palatnik-de-Sousa, Eugenia Carrillo, Javier Moreno, Paula Mello de Luca, Alexandre Morrot, Daniela Santoro Rosa, Marcos Palatnik, Cristiane Bani-Corrêa, Roque Pacheco de Almeida, Clarisa Beatriz Palatnik-de-Sousa
Development of immunoprotection against visceral leishmaniasis (VL) focused on the identification of antigens capable of inducing a Th1 immune response. Alternatively, antigens targeting the CD8 and T-regulatory responses are also relevant in VL pathogenesis and worthy of being included in a preventive human vaccine. We assessed in active and cured patients and VL asymptomatic subjects the clinical signs and cytokine responses to the Leishmania donovani nucleoside hydrolase NH36 antigen and its N-(F1), central (F2) and C-terminal (F3) domains...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28321217/a-vaccine-therapy-for-canine-visceral-leishmaniasis-promoted-significant-improvement-of-clinical-and-immune-status-with-reduction-in-parasite-burden
#9
Bruno Mendes Roatt, Rodrigo Dian de Oliveira Aguiar-Soares, Levi Eduardo Soares Reis, Jamille Mirelle de Oliveira Cardoso, Fernando Augusto Siqueira Mathias, Rory Cristiane Fortes de Brito, Sydnei Magno da Silva, Nelder De Figueiredo Gontijo, Sidney de Almeida Ferreira, Jesus G Valenzuela, Rodrigo Corrêa-Oliveira, Rodolfo Cordeiro Giunchetti, Alexandre Barbosa Reis
Herein, we evaluated the treatment strategy employing a therapeutic heterologous vaccine composed of antigens of Leishmania braziliensis associated with MPL adjuvant (LBMPL vaccine) for visceral leishmaniasis (VL) in symptomatic dogs naturally infected by Leishmania infantum. Sixteen dogs received immunotherapy with MPL adjuvant (n = 6) or with a vaccine composed of antigens of L. braziliensis associated with MPL (LBMPL vaccine therapy, n = 10). Dogs were submitted to an immunotherapeutic scheme consisting of 3 series composed of 10 subcutaneous doses with 10-day interval between each series...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28321033/role-of-spleen-derived-il-10-in-prevention-of-systemic-low-grade-inflammation-by-obesity-review
#10
Koro Gotoh, Kansuke Fujiwara, Manabu Anai, Mitsuhiro Okamoto, Takayuki Masaki, Tetsuya Kakuma, Hirotaka Shibata
Obesity can be associated with systemic low-grade inflammation that leads to obesity-related metabolic disorders. Recent studies raise the possibility that the inflammation in hypothalamus, liver and white adipose tissue (WAT) contributes to the pathogenesis of diet-induced obesity. We focus on the role of interleukin (IL)-10, an anti-inflammatory cytokine produced from spleen in obesity because it is indicated that obesity decreases the expression of pro-inflammatory cytokines in spleen. Obesity results in decrease of IL-10 synthesis from spleen, probably due to reduction of B-cells expression by promoting oxidative stress and apoptosis in spleen...
March 17, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28319068/iron-addiction-a-novel-therapeutic-target-in-ovarian-cancer
#11
D Basuli, L Tesfay, Z Deng, B Paul, Y Yamamoto, G Ning, W Xian, F McKeon, M Lynch, C P Crum, P Hegde, M Brewer, X Wang, L D Miller, N Dyment, F M Torti, S V Torti
Ovarian cancer is a lethal malignancy that has not seen a major therapeutic advance in over 30 years. We demonstrate that ovarian cancer exhibits a targetable alteration in iron metabolism. Ferroportin (FPN), the iron efflux pump, is decreased, and transferrin receptor (TFR1), the iron importer, is increased in tumor tissue from patients with high grade but not low grade serous ovarian cancer. A similar profile of decreased FPN and increased TFR1 is observed in a genetic model of ovarian cancer tumor-initiating cells (TICs)...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28300844/il-27-triggers-il-10-production-in-th17-cells-via-a-c-maf-ror%C3%AE-t-blimp-1-signal-to-promote-the-progression-of-endometriosis
#12
Kai-Kai Chang, Li-Bing Liu, Li-Ping Jin, Bing Zhang, Jie Mei, Hui Li, Chun-Yan Wei, Wen-Jie Zhou, Xiao-Yong Zhu, Jun Shao, Da-Jin Li, Ming-Qing Li
Endometriosis is an estrogen-dependent inflammatory disease. The anti-inflammatory cytokine IL-10 is also increased in endometriosis. IL-10 production by Th17 cells is critical for limiting autoimmunity and inflammatory responses. However, the mechanism of inducing IL-10-producing Th17 cells is still largely unknown. The present study investigated the differentiation mechanism and role of IL-10-producing Th17 cells in endometriosis. Here, we report that IL-10(+)Th17 cells are significantly increased in the peritoneal fluid of women with endometriosis, along with an elevation of IL-27, IL-6 and TGF-β...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28299842/electroacupuncture-promotes-cns-dependent-release-of-mesenchymal-stem-cells
#13
Tatiana E Salazar, Matthew R Richardson, Eleni Beli, Matthew S Ripsch, John George, Youngsook Kim, Yaqian Duan, Leni Moldovan, Yuanqing Yan, Ashay Bhatwadekar, Vaishnavi Jadhav, Jared A Smith, Susan McGorray, Alicia L Bertone, Dmitri O Traktuev, Keith L March, Luis M Colon-Perez, Keith Avin, Emily Sims, Julie A Mund, Jamie Case, Shaolin Deng, Min Su Kim, Bruce McDavitt, Michael E Boulton, Jeffrey Thinschmidt, Sergio Li Calzi, Stephanie D Fitz, Robyn K Fuchs, Stuart J Warden, Todd McKinley, Anantha Shekhar, Marcelo Febo, Phillip L Johnson, Lung Ji Chang, Zhanguo Gao, Mikhail G Kolonin, Song Lai, Jinfeng Ma, Xinzhong Dong, Fletcher A White, Huisheng Xie, Mervin C Yoder, Maria B Grant
Electro-acupuncture (EA) performed in rats and humans using front-limb acupuncture sites, LI-4 and LI-11, and Du-14 and Du-20 increased functional connectivity between the anterior hypothalamus and the amygdala and mobilized mesenchymal stem cells (MSC) into the systemic circulation. In human subjects, the source of the MSC was found to be primarily adipose tissue whereas in rodents the tissue sources were considered more heterogeneous. Pharmacological disinhibition of rat hypothalamus enhanced sympathetic nervous system (SNS) activation and similarly resulted in a release of MSC into the circulation...
March 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28299382/-immunological-mechanisms-of-allergen-specific-immunotherapy
#14
REVIEW
J-P Allam, N Novak
Allergen-specific immunotherapy is accompanied by multiple changes on the cellular and humoral level. A shift of Th2 immune responses towards immune responses of the Th1 type, which goes along with an increase of regulatory T cells and B cells, IL-10 as well as reduction of effector cells and eosinophils in the tissue, combined with lower IgE production in favor of higher IgG4 production, are regarded as key mechanisms of allergen-specific immunotherapy . A better understanding of immunologic pathways of specific immunotherapy would be essential for the improvement of this therapy as well as for the development of reliable biomarkers capable to monitor therapeutic responses as well as compliance of the patients...
March 15, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28297581/systemic-delivery-of-bone-marrow-mesenchymal-stem-cells-for-in-situ-intervertebral-disc-regeneration
#15
Carla Cunha, Catarina R Almeida, Maria Inês Almeida, Andreia M Silva, Maria Molinos, Sofia Lamas, Catarina L Pereira, Graciosa Q Teixeira, António T Monteiro, Susana G Santos, Raquel M Gonçalves, Mário A Barbosa
Cell therapies for intervertebral disc (IVD) regeneration presently rely on transplantation of IVD cells or stem cells directly to the lesion site. Still, the harsh IVD environment, with low irrigation and high mechanical stress, challenges cell administration and survival. In this study, we addressed systemic transplantation of allogeneic bone marrow mesenchymal stem cells (MSCs) intravenously into a rat IVD lesion model, exploring tissue regeneration via cell signaling to the lesion site. MSC transplantation was performed 24 hours after injury, in parallel with dermal fibroblasts as a control; 2 weeks after transplantation, animals were killed...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28296027/transitional-b-cells-predominantly-reconstituted-after-a-desensitization-therapy-using-rituximab-before-kidney-transplantation
#16
Masako Ikemiyagi, Toshihito Hirai, Rumi Ishii, Satoshi Miyairi, Masayoshi Okumi, Kazunari Tanabe
The role of B cells in graft rejection and tolerance has aroused great interest. We previously reported that rituximab (RIT) induction prior to kidney transplantation (KTx) reduced the incidence rate of chronic rejection. Here, we performed a cross sectional investigation to determine the characteristics of B cells after RIT induction for KTx. We sampled blood from 29 patients with (N = 16) and without (N = 13) RIT induction 3 to 18 months after KTx. In the RIT group, the majority of repopulating B cells was the transitional type, while memory B cells were scarce...
March 13, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28295300/ifn-%C3%AE-directly-inhibits-murine-b-cell-precursor-leukemia-initiating-cell-proliferation-early-in-life
#17
Mario Fidanza, Alix E Seif, Sumin Jo, Amina Kariminia, Nina Rolf, Laura M Sly, Stephan A Grupp, Gregor S D Reid
The early-life immune environment has been implicated as a modulator of acute lymphoblastic leukemia (ALL) development in children, with infection being associated with significant changes in ALL risk. Furthermore, polymorphisms in several cytokine genes, including IL-10 and IFN-γ, are associated with leukemia development. However, the mechanisms and timing of these influences remain unknown. Here, we use the Eμ-ret transgenic mouse model of B-cell precursor ALL to assess the influence of IFN-γ on the early-life burden of leukemia-initiating cells...
March 15, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28295019/m2e-tetramer-specific-memory-cd4-t-cells-are-broadly-protective-against-influenza-infection
#18
D G Eliasson, A Omokanye, K Schön, U A Wenzel, V Bernasconi, M Bemark, A Kolpe, K El Bakkouri, T Ysenbaert, L Deng, W Fiers, X Saelens, N Lycke
Matrix protein 2 ectodomain (M2e) is considered an attractive component of a broadly protective, universal influenza A vaccine. Here we challenge the canonical view that antibodies against M2e are the prime effectors of protection. Intranasal immunizations of Balb/c mice with CTA1-3M2e-DD-generated M2e-specific memory CD4 T cells that were I-A(d) restricted and critically protected against infection, even in the complete absence of antibodies, as observed in JhD mice. Whereas some M2e-tetramer-specific memory CD4 T cells resided in spleen and lymph nodes, the majority were lung-resident Th17 cells, that rapidly expanded upon a viral challenge infection...
March 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28293795/a-workflow-for-in-silico-design-of-hil-10-and-ebvil-10-inhibitors-using-well-known-miniprotein-scaffolds
#19
Salvador Dueñas, Sergio A Aguila, Genaro Pimienta
The over-expression of immune-suppressors such as IL-10 is a crucial landmark in both tumor progression, and latent viral and parasite infection. IL-10 is a multifunctional protein. Besides its immune-cell suppressive function, it also promotes B-cell tumorigenesis of lymphomas and melanoma. Human pathogens like unicellular parasites and viruses that remain latent inside B cells promote the over-expression of hIL-10 upon infection, which inhibits cell-mediated immune surveillance, and at the same time mediates B cell proliferation...
April 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28290822/-immunological-analysis-of-human-atherosclerotic-plaques-in-ex-vivo-culture-system
#20
D A Vorobyova, A M Lebedev, M S Vagida, O I Ivanova, E I Felker, V N Gontarenko, A V Shpektor, L B Margolis, E Yu Vasilieva
THE AIM OF THE STUDY: to analyze the dynamics of lymphocytic composition of human atherosclerotic plaques in ex vivo culture system. MATERIALS AND METHODS: The study included 15 atherosclerotic plaques obtained from patients who underwent carotid endarterectomy. Plaques were cultured as ring-shaped explants on collagen rafts in culture medium of special composition in CO2 incubator according to the previously developed technique. On day 0, and also on the 4th and 19th days of culture we extracted cells from plaque explants and analyzed B- and T-lymphocytic content of the tissue, as well as the percentage of CD16+ natural killer (NK) cells, using multichromatic flow cytometry...
December 2016: Kardiologiia
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