keyword
MENU ▼
Read by QxMD icon Read
search

Tregs OR regulatory T cells

keyword
https://www.readbyqxmd.com/read/28806575/lessons-from-ctla-4-deficiency-and-checkpoint-inhibition
#1
REVIEW
Bernice Lo, Ussama M Abdel-Motal
CTLA-4 is a crucial negative regulator of immune responses. Absence of CTLA-4 in mice causes autoimmunity and lethal multiorgan lymphocytic infiltration and tissue destruction. Recently, heterozygous CTLA4 or biallelic LRBA mutations leading to functional CTLA-4 deficiency and autoimmunity have been discovered. LRBA was identified as a novel regulator of steady-state CTLA-4 protein levels in Tregs and activated T cells. CTLA-4 deficiency due to checkpoint blockade cancer immunotherapy has also been found to lead to autoimmune reactions...
August 11, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28805308/lymphocyte-profile-and-cytokine-mrna-expression-in-peripheral-blood-mononuclear-cells-of-patients-with-recurrent-respiratory-papillomatosis-suggest-dysregulated-cytokine-mrna-response-and-impaired-cytotoxic-capacity
#2
Anna Holm, Olga Nagaeva, Ivan Nagaev, Christos Loizou, Göran Laurell, Lucia Mincheva-Nilsson, Karin Nylander, Katarina Olofsson
OBJECTIVES: Recurrent respiratory papillomatosis (RRP) is a relatively rare, chronic disease caused by Human Papilloma Virus (HPV) 6 and 11, and characterized by wart-like lesions in the airway affecting voice and respiratory function. The majority of HPV infections are asymptomatic and resolve spontaneously, however, some individuals are afflicted with persistent HPV infections. Failure to eliminate HPV 6 and 11 due to a defect immune responsiveness to these specific genotypes is proposed to play a major role in the development of RRP...
August 14, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28805262/mesenchymal-stem-cells-attenuate-liver-fibrosis-by-suppressing-th17-cells
#3
Neda Milosavljevic, Marina Gazdic, Bojana Simovic Markovic, Aleksandar Arsenijevic, Jasmin Nurkovic, Zana Dolicanin, Nemanja Jovicic, Ilija Jeftic, Valentin Djonov, Nebojsa Arsenijevic, Miodrag L Lukic, Vladislav Volarevic
This study investigates molecular and cellular mechanisms involved in mesenchymal stem cell (MSCs)-mediated modulation of IL-17 signaling during liver fibrosis. Mice received CCl4 (1μL/g intraperitoneally) twice/week for 1 month. MSCs (1x10(6) ), or MSC-conditioned medium (MSC-CM) were intravenously injected 24h after CCl4 and on every 7(th) day. Liver fibrosis was determined by macroscopic examination, histological analysis, Sirius red staining and RT-PCR. Serum levels of cytokines, IDO and kynurenine were determined by ELISA...
August 14, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28805251/wiskott-aldrich-syndrome-protein-emerging-mechanisms-in-immunity
#4
REVIEW
Elizabeth Rivers, Adrian J Thrasher
The Wiskott Aldrich syndrome protein (WASP) participates in innate and adaptive immunity through regulation of actin cytoskeleton-dependent cellular processes, including immune synapse formation, cell signaling, migration and cytokine release. There is also emerging evidence for a direct role in nuclear transcription programmes uncoupled from actin polymerization. A deeper understanding of some of the more complex features of Wiskott Aldrich syndrome (WAS) itself, such as the associated autoimmunity and inflammation, has come from identification of defects in the number and function of anti-inflammatory myeloid cells and regulatory T and B cells, as well as defects in positive and negative B-cell selection...
August 14, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28804903/targeting-of-tolerogenic-dendritic-cells-towards-heat-shock-proteins-a-novel-therapeutic-strategy-for-autoimmune-diseases
#5
REVIEW
Manon A A Jansen, Rachel Spiering, Femke Broere, Jacob M van Laar, John D Isaacs, Willem van Eden, Catharien M U Hilkens
Tolerogenic dendritic cells (tolDCs) are a promising therapeutic tool to restore immune tolerance in autoimmune diseases. The rationale of using tolDCs is that they can specifically target the pathogenic T cell response, while leaving other, protective T cell responses intact. Several ways of generating therapeutic tolDCs have been described, but whether these tolDCs should be loaded with autoantigen(s), and if so, with which autoantigen(s), remains unclear. Autoimmune diseases, such as rheumatoid arthritis, are not commonly defined by a single, universal, autoantigen...
August 14, 2017: Immunology
https://www.readbyqxmd.com/read/28804866/virally-vectored-vaccine-delivery-medical-needs-mechanisms-advantages-and-challenges
#6
Daniel D Pinschewer
Vaccines represent one of the most successful chapters in the history of medicine. Over the past decades, the advent of recombinant cDNA technology has enabled the biomedical community to genetically engineer viruses for vaccine delivery purposes. As a starting point, this review evaluates the unmet medical needs, which drive scientists and industry to exploit such fundamentally new technology for human vaccination. The author discusses the molecular functioning, production and safety profile of replication-competent and -deficient viral vector systems, representing two fundamentally distinct classes of "genetic vaccines"...
August 14, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28804811/serum-diamine-oxidase-in-pseudoallergy-in-the-pediatric-population
#7
Joanna Kacik, Barbara Wróblewska, Sławomir Lewicki, Robert Zdanowski, Bolesław Kalicki
Histamine intolerance (pseudoallergy) is a poorly investigated type of food hypersensitivity. The main enzyme responsible for histamine degradation in the extracellular matrix is diamine oxidase (DAO). Disturbances in the concentration or activity of DAO may lead to the development of clinical signs of allergy. The aim of the present work was to assess the DAO concentration, peripheral blood morphology, lymphocytes phenotyping (CD3+, CD4+, CD8+, CD19+, NK cells, NKT cells, and activated T-cells), and natural regulatory Treg (nTregs) cell population (CD4+, CD25+, CD127low, and FoxP3) in 34 pediatric patients with histamine-dependent syndromes...
August 15, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28804691/combination-of-celecoxib-celebrex-%C3%A2-and-cd19-car-redirected-ctl-immunotherapy-for-the-treatment-of-b-cell-non-hodgkin-s-lymphomas
#8
REVIEW
Tam Nm Dinh, Alexandra S Onea, Ali R Jazirehi
The nonsteroidal anti-inflammatory drug (NSAID) Celecoxib (Celebrex(®)) received Food and Drug Administration (FDA) approval in 1998 for treatment of osteoarthritis and rheumatoid arthritis, and in recent years, its use has been extended to various types of malignancies, such as breast, colon, and urinary cancers. To maintain the survival of malignant B cells, non-Hodgkin's Lymphoma (NHL) is highly dependent on inflammatory microenvironment, and is inhibited by celecoxib. Celecoxib hinders tumor growth interacting with various apoptotic genes, such as cyclooxygenase-2 (Cox-2), B-cell lymphoma 2 (Bcl-2) family, phosphor-inositide-3 kinase/serine-threonine-specific protein kinase (PI3K/Akt), and inhibitors of apoptosis proteins (IAP) family...
2017: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28803387/-1-h-15-n-and-13-c-chemical-shift-assignments-of-the-regulatory-domain-of-human-calcineurin
#9
Dinesh K Yadav, Sri Ramya Tata, John Hunt, Erik C Cook, Trevor P Creamer, Nicholas C Fitzkee
Calcineurin (CaN) plays an important role in T-cell activation, cardiac system development and nervous system function. Previous studies have demonstrated that the regulatory domain (RD) of CaN binds calmodulin (CaM) towards the N-terminal end. Calcium-loaded CaM activates the serine/threonine phosphatase activity of CaN by binding to the RD, although the mechanistic details of this interaction remain unclear. It is thought that CaM binding at the RD displaces the auto-inhibitory domain (AID) from the active site of CaN, activating phosphatase activity...
August 12, 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28802588/t-cell-costimulation-blockade-promotes-transplantation-tolerance-in-combination-with-sirolimus-and-post-transplantation-cyclophosphamide-for-haploidentical-transplantation-in-children-with-severe-aplastic-anemia
#10
Sarita Rani Jaiswal, Prakash Bhakuni, Shamsuz Zaman, Satish Bansal, Priyanka Bharadwaj, Sneh Bhargava, Suparno Chakrabarti
We conducted a pilot study employing extended T cell costimulation blockade (COSBL) with Abatacept along with sirolimus and post-transplantation cyclophosphamide (PTCy) in 10 patients (median age 12) with severe aplastic anemia (SAA). Nine patients engrafted in the COSBL group, compared to all 10 patients (median 14 vs 13days) treated on PTCy protocols without abatacept (CONTROL group). The incidence of acute graft-versus-host disease (GVHD) was 10.5% in the COSBL group compared to 50% in the CONTROL group (p=0...
August 9, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28802587/pre-transplant-infusion-of-donor-derived-dendritic-cells-maintained-at-the-immature-stage-by-sinomenine-increases-splenic-foxp3-tregs-in-recipient-rats-after-renal-allotransplantation
#11
Lian Li, Zhigang Luo, Zhe Song, Liwen Zheng, Tuo Chen
OBJECTIVE: The immunosuppressive mechanism of sinomenine in organ allotransplantation was investigated, especially its effect of blocking dendritic cell (DC) maturation, which might influence the frequency of regulatory T cells (Tregs). METHODS: Bone marrow cells from male donor Wistar rats were induced to differentiate into DCs in vitro in the presence or absence of sinomenine, and characterized by flow cytometry. These two groups of DCs were respectively injected into male recipient Sprague-Dawley rats via the tail vein, at both high and low doses...
August 9, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28802258/human-blood-tfr-cells-are-indicators-of-ongoing-humoral-activity-not-fully-licensed-with-suppressive-function
#12
Valter R Fonseca, Ana Agua-Doce, Ana Raquel Maceiras, Wim Pierson, Filipa Ribeiro, Vasco C Romão, Ana Rita Pires, Susana Lopes da Silva, João Eurico Fonseca, Ana E Sousa, Michelle A Linterman, Luis Graca
Germinal center (GC) responses are controlled by T follicular helper (Tfh) and T follicular regulatory (Tfr) cells and are crucial for the generation of high-affinity antibodies. Although the biology of human circulating and tissue Tfh cells has been established, the relationship between blood and tissue Tfr cells defined as CXCR5(+)Foxp3(+) T cells remains elusive. We found that blood Tfr cells are increased in Sjögren syndrome, an autoimmune disease with ongoing GC reactions, especially in patients with high autoantibody titers, as well as in healthy individuals upon influenza vaccination...
August 11, 2017: Science Immunology
https://www.readbyqxmd.com/read/28802126/derp1-modified-dendritic-cells-attenuate-allergic-inflammation-by-regulating-the-development-of-t-helper-type1-th1-th2-cells-and-regulatory-t-cells-in-a-murine-model-of-allergic-rhinitis
#13
Shaoqing Yu, Bing Han, Shuangxi Liu, Hong Wang, Wenjie Zhuang, Yu Huang, Ruxin Zhang
The CD4(+)CD25(+)Foxp3(+) regulatory T cells (Tregs) are known to regulate Th2-induced allergic rhinitis (AR). In this study, we evaluated the efficacy of Derp1-modified dendritic cells (DCs) in AR immunotherapy. Derp1 was synthesized and transfected into DCs to generate Derp1-modified DCs. Phenotypes of Derp1-modified DCs were analyzed with flow cytometry using antibodies against DC markers CD11c, CD11b, CD59, CD103 and Toll-like receptor 1(TLR1). Four groups of subject mice were formed; the controls were treated with immature DCs, while the AR mice models were sensitized with Derp1(AR) and treated with DCs(DC-AR) or Derp1-modified DCs (Derp1DC-AR)...
August 9, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28802077/helicobacter-pylori-and-its-secreted-immunomodulator-vaca-protect-against-anaphylaxis-in-experimental-models-of-food-allergy
#14
Andreas Kyburz, Sabine Urban, Aleksandra Altobelli, Stefan Floess, Jochen Huehn, Timothy L Cover, Anne Müller
BACKGROUND: Food allergy is an increasingly common health problem in Western populations. Epidemiological studies have suggested both positive and negative associations between food allergy and infection with the gastric bacterium Helicobacter pylori. OBJECTIVE: The objective of this work was to investigate whether experimental infection with H. pylori, or prophylactic treatment with H. pylori-derived immunomodulatory molecules, affects the onset and severity of food allergy, either positively or negatively...
August 12, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28802037/the-pi3k-pathway-in-human-disease
#15
REVIEW
David A Fruman, Honyin Chiu, Benjamin D Hopkins, Shubha Bagrodia, Lewis C Cantley, Robert T Abraham
Phosphoinositide 3-kinase (PI3K) activity is stimulated by diverse oncogenes and growth factor receptors, and elevated PI3K signaling is considered a hallmark of cancer. Many PI3K pathway-targeted therapies have been tested in oncology trials, resulting in regulatory approval of one isoform-selective inhibitor (idelalisib) for treatment of certain blood cancers and a variety of other agents at different stages of development. In parallel to PI3K research by cancer biologists, investigations in other fields have uncovered exciting and often unpredicted roles for PI3K catalytic and regulatory subunits in normal cell function and in disease...
August 10, 2017: Cell
https://www.readbyqxmd.com/read/28802026/reversible-immune-abnormality-and-regulatory-t-cells-in-offspring-of-der-p-1-exposed-female-mice
#16
Lu Tan, Zezhang Tao, Yonggang Kong, Yu Xu
BACKGROUND: Maternal allergic diseases have an important influence on the origin of allergic rhinitis (AR) in offspring, but the mechanism and the duration of the maternal effect are unknown. Previous researches prompted the important roles of Tregs and Foxp3 DNA methylation in the development of allergic diseases. OBJECTIVE: To investigate the immune state and Tregs in the offspring of Der p 1-exposed female mice. METHOD: BALB/c female mice were exposed to Der p1 to construct the mouse AR model, then mated with normal male mice...
August 8, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/28801931/immunomodulatory-effects-of-adipose-stromal-vascular-fraction-cells-promote-alternative-activation-macrophages-to-repair-tissue-damage
#17
Annie C Bowles, Rachel M Wise, Brittany Y Gerstein, Robert C Thomas, Roberto Ogelman, Isabella Febbo, Bruce A Bunnell
The pathogenesis of many diseases is driven by the interactions between helper T (TH ) cells and macrophages. The phenotypes of these cells are a functional dichotomy that are persuaded according to the surrounding milieu. In both multiple sclerosis (MS) and the experimental autoimmune encephalomyelitis (EAE) model, TH 1 and TH 17 cells propagate autoimmune signaling and inflammation in the peripheral lymphoid tissues. In turn, this pro-inflammatory repertoire promotes the classical activation, formerly the M1-type, macrophages...
August 12, 2017: Stem Cells
https://www.readbyqxmd.com/read/28801723/a-review-of-the-role-of-immune-cells-in-acute-kidney-injury
#18
REVIEW
Anthony Bonavia, Kai Singbartl
Acute kidney injury (AKI) is a systemic disease occurring commonly in patients who are critically ill. Etiologies of AKI can be septic or aseptic (nephrotoxic, or ischemia-reperfusion injury). Recent evidence reveals that innate and adaptive immune responses are involved in mediating damage to renal tubular cells and in recovery from AKI. Dendritic cells, monocytes/macrophages, neutrophils, T lymphocytes, and B lymphocytes all contribute to kidney injury. Conversely, M2 macrophages and regulatory T cells are essential in suppressing inflammation, tissue remodeling and repair following kidney injury...
August 11, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28801365/overexpression-of-satb1-gene-inhibits-the-immunosuppressive-function-of-regulatory-t-cells-in-chronic-hepatitis-b
#19
Yiyin Wang, Xuefen Li, Haishen Kong, Qiaoyun Zhu, Yuejiao Dong, Xia Liu, Yu Chen
Special AT-rich sequence-binding protein 1 (SATB1) is a class of nuclear matrix binding protein expressed by T cells and plays an important role in regulatory T cells (Tregs) mediated immune regulation. The immunosuppressive function of Tregs in chronic hepatitis B (CHB) being inhibited by SATB1 has been shown in our previous studies. The objective of this study was to learn the impact of SATB1 on the cellular immune function of CHB. SATB1 isolated from human peripheral blood mononuclear cells (PBMCs) was used as a template of PCR and its product was connected to vector PLV-EF1α-EGFP-N...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28801358/il-4-il-13-heteroreceptor-influences-th17-cell-conversion-and-sensitivity-to-regulatory-t-cell-suppression-to-restrain-experimental-allergic-encephalomyelitis
#20
Subhasis Barik, Jason S Ellis, Jason A Cascio, Mindy M Miller, Tobechukwu K Ukah, Alexis N Cattin-Roy, Habib Zaghouani
IL-4 and IL-13 have been defined as anti-inflammatory cytokines that can counter myelin-reactive T cells and modulate experimental allergic encephalomyelitis. However, it is not known whether endogenous IL-4 and IL-13 contribute to the maintenance of peripheral tolerance and whether their function is coordinated with T regulatory cells (Tregs). In this study, we used mice in which the common cytokine receptor for IL-4 and IL-13, namely the IL-4Rα/IL-13Rα1 (13R) heteroreceptor (HR), is compromised and determined whether the lack of signaling by endogenous IL-4 and IL-13 through the HR influences the function of effector Th1 and Th17 cells in a Treg-dependent fashion...
August 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
keyword
keyword
86543
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"