Elementary steps in T cell receptor triggering.

abstract：:The germinal center reaction is an important target for modulating antibody responses. Antibody production from germinal centers is regulated by a negative feedback mechanism termed antibody feedback. By imposing antibody feedback, germinal centers can interact and regulate the output of other germinal centers. Using ...

journal_title：Frontiers in immunology

authors： Arulraj T,Binder SC,Robert PA,Meyer-Hermann M

更新日期：2019-09-06 00:00:00

abstract：:Pemphigus and systemic lupus erythematosus (SLE) are severe potentially life-threatening autoimmune diseases. They are classified as B-cell-mediated autoimmune diseases, both depending on autoreactive CD4+ T lymphocytes to modulate the autoimmune B-cell response. Despite the reported association of pemphigus and SLE, ...

journal_title：Frontiers in immunology

authors： Sezin T,Vorobyev A,Sadik CD,Zillikens D,Gupta Y,Ludwig RJ

更新日期：2018-01-17 00:00:00

abstract：:Celiac Disease (CD) is a multifactorial, autoimmune enteropathy activated by cereal proteins in genetically predisposed individuals carrying HLA DQ2/8 genes. A heterogenous gene combination of the cereal prolamins is documented in different wheat genotypes, which is suggestive of their variable immunogenic potential. ...

journal_title：Frontiers in immunology

authors： Grover J,Chhuneja P,Midha V,Ghia JE,Deka D,Mukhopadhyay CS,Sood N,Mahajan R,Singh A,Verma R,Bansal E,Sood A

更新日期：2019-02-04 00:00:00

abstract：:The participation of cytokines and chemokines in Plasmodium vivax malaria (Pv-malaria) activates the immune response and thus causes the production of several inflammatory mediators. This process is already well-established, but little is known about eicosanoids in malaria physiopathology, especially in regards to inf...

journal_title：Frontiers in immunology

authors： Abreu-Filho PG,Tarragô AM,Costa AG,Monteiro WM,Meielles AFG,Costa TCC,Silva JS,Zambuzi FA,Gardinassi LG,Moraes LAB,Lacerda MVG,Sorgi CA,Faccioli LH,Malheiro A

更新日期：2019-09-18 00:00:00

abstract：:The gastrointestinal tract contains the largest lymphoid organ to react with pathogenic microorganisms and suppress excess inflammation. Patients with primary immunodeficiency diseases (PIDs) can suffer from refractory diarrhea. In this study, we present two siblings who began to suffer from refractory diarrhea with a...

journal_title：Frontiers in immunology

authors： Lien R,Lin YF,Lai MW,Weng HY,Wu RC,Jaing TH,Huang JL,Tsai SF,Lee WI

更新日期：2017-09-07 00:00:00

abstract：:Granulocytes, the most abundant types of leukocytes, are the first line of defense against pathogen invasion. However, the plasticity and diversity of granulocytes have been increasingly revealed, especially with regard to their versatile functions in orchestrating adaptive immune responses. A substantial body of rece...

journal_title：Frontiers in immunology

authors： Lin A,Loré K

更新日期：2017-12-11 00:00:00

abstract：:The induction of Th2 responses is thought to be multifactorial, and emerge from specific pathways distinct from those associated with antagonistic antibacterial or antiviral Th1 responses. Here, we show that the recognition of non-viable Nippostrongylus brasiliensis (Nb) in the skin induces a strong recruitment of mon...

journal_title：Frontiers in immunology

authors： Pellefigues C,Tang SC,Schmidt A,White RF,Lamiable O,Connor LM,Ruedl C,Dobrucki J,Le Gros G,Ronchese F

更新日期：2017-11-16 00:00:00

abstract：:Extrapulmonary tuberculosis (EPTB) has become more common in recent years; however, the diagnosis of EPTB remains a challenge. In this study, we analyzed the performance of the ratio of TB-specific antigen (TBAg) to phytohemagglutinin (PHA) (TBAg/PHA ratio) in T-SPOT.TB (T-SPOT) assay for diagnosis and treatment monit...

journal_title：Frontiers in immunology

authors： Wang F,Yu J,Zhou Y,Luo Y,Wu S,Huang M,Yin B,Huang J,Mao L,Sun Z

更新日期：2018-05-14 00:00:00

abstract：:Alpha-1 antitrypsin (AAT) is an inhibitor of neutrophil elastase and a member of the serine proteinase inhibitor (serpin) superfamily, and little is known about its activity in sickle cell disease (SCD). We hypothesize that AAT may undergo changes in SCD because of the high oxidative stress and inflammation associated...

journal_title：Frontiers in immunology

authors： Carvalho MOS,Souza ALCS,Carvalho MB,Pacheco APAS,Rocha LC,do Nascimento VML,Figueiredo CVB,Guarda CC,Santiago RP,Adekile A,Goncalves MS

更新日期：2017-11-06 00:00:00

abstract：:Objectives: Regulatory T cells (Tregs) are frequently functionally impaired in patients with granulomatosis with polyangiitis (GPA). However, the mechanism underlying their impaired function is unknown. Here, we hypothesized that Treg dysfunction in GPA is due to altered microRNA (miRNA) expression. Methods: RNA isola...

journal_title：Frontiers in immunology

authors： Dekkema GJ,Bijma T,Jellema PG,Van Den Berg A,Kroesen BJ,Stegeman CA,Heeringa P,Abdulahad WH,Sanders JS

更新日期：2019-09-12 00:00:00

abstract：:Aryl hydrocarbon receptor (AhR), a transcription factor activated by a large number of natural and synthetic agents, modulates the activity of immune cells in the gut and represents an important link between the environment and immune-mediated pathologies. In this study, we investigated the role of AhR in celiac disea...

journal_title：Frontiers in immunology

authors： Dinallo V,Marafini I,Di Fusco D,Di Grazia A,Laudisi F,Dwairi R,Paoluzi OA,Monteleone G,Monteleone I

更新日期：2019-02-04 00:00:00

abstract：:Aim: The objective of this study was to evaluate the association of the human leukocyte antigen (HLA) class II genes HLA-DRB1, HLA-DPB1, and HLA-DQB1 with the humoral immune response elicited by inactivated Japanese encephalitis (JE) vaccine (IJEV). Methods: A total of 373 individuals aged 3-12 years in the Inner Mong...

journal_title：Frontiers in immunology

authors： Yao Y,Yang H,Shi L,Liu S,Li C,Chen J,Zhou Z,Sun M,Shi L

更新日期：2019-03-08 00:00:00

abstract：:Chronic hepatitis C virus (HCV) infection disrupts immune functions, including that of cytotoxic CD8+ T-cells which are important mediators of immune response. While HCV cure aims to eliminate long term sequelae of infection, whether direct-acting antiviral (DAA) treatment results in immune reconstitution remains uncl...

journal_title：Frontiers in immunology

authors： Vranjkovic A,Deonarine F,Kaka S,Angel JB,Cooper CL,Crawley AM

更新日期：2019-08-13 00:00:00

abstract：:T cells are the main orchestrators of protective immunity in the stomach; however, limited information on the presence and function of the gastric T subsets is available mainly due to the difficulty in recovering high numbers of viable cells from human gastric biopsies. To overcome this shortcoming we optimized a cell...

journal_title：Frontiers in immunology

authors： Booth JS,Toapanta FR,Salerno-Goncalves R,Patil S,Kader HA,Safta AM,Czinn SJ,Greenwald BD,Sztein MB

更新日期：2014-06-19 00:00:00

abstract：:Autoimmune diseases involve a complex dysregulation of immunity. Autoimmune diseases include many members [e.g., rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE)], and most of them are classified according to what organs and tissues are targeted by the damaging immune response. Many studies have focuse...

journal_title：Frontiers in immunology

authors： Jin F,Hu H,Xu M,Zhan S,Wang Y,Zhang H,Chen X

更新日期：2018-10-16 00:00:00

abstract：:Mycobacterium tuberculosis continues to be one of the most successful pathogens on earth. Upon inhalation of M. tuberculosis by a healthy individual, the host immune system will attempt to eliminate these pathogens using a combination of immune defense strategies. These include the recruitment of macrophages and other...

journal_title：Frontiers in immunology

authors： BoseDasgupta S,Pieters J

更新日期：2014-10-08 00:00:00

abstract：:Mucosal-associated Invariant T (MAIT) cells recognize vitamin B-based antigens presented by the non-polymorphic MHC class I related-1 molecule (MR1). Both MAIT T cell receptors (TCR) and MR1 are highly conserved among mammals, suggesting an important, and conserved, immune function. For many years, the antigens they r...

journal_title：Frontiers in immunology

authors： Corbett AJ,Awad W,Wang H,Chen Z

更新日期：2020-08-27 00:00:00

abstract：BACKGROUND:Subjects are considered infected with Trypanosoma cruzi when tested positive by at least two out of three serological tests, whereas a positive result in only one of up to three tests is termed "serodiscordant" (SD). Assessment of parasite-specific T-cell responses may help discriminate the uninfected from i...

journal_title：Frontiers in immunology

authors： Castro Eiro MD,Alvarez MG,Cooley G,Viotti RJ,Bertocchi GL,Lococo B,Albareda MC,De Rissio AM,Natale MA,Parodi C,Tarleton RL,Laucella SA

更新日期：2017-09-15 00:00:00

abstract：:Human noroviruses (HuNoVs) are the cause of more than 95% of epidemic non-bacterial gastroenteritis worldwide, with some lethal cases. These viral agents affect people of all ages. However, young children and older adults are the highest-risk groups, being affected with the greatest rate of hospitalizations and morbid...

journal_title：Frontiers in immunology

authors： Campillay-Véliz CP,Carvajal JJ,Avellaneda AM,Escobar D,Covián C,Kalergis AM,Lay MK

更新日期：2020-06-16 00:00:00

abstract：:Disease suppressive T cell regulation may depend on cognate interactions of regulatory T cells with self-antigens that are abundantly expressed in the inflamed tissues. Heat shock proteins (HSPs) are by their nature upregulated in stressed cells and therefore abundantly present as potential targets for such regulation...

journal_title：Frontiers in immunology

authors： van Eden W,Jansen MAA,de Wolf ACM,Ludwig IS,Leufkens P,Broere F

更新日期：2017-11-30 00:00:00

abstract：:Background: B-1a B cells and gut secretory IgA (SIgA) are absent in asplenic mice. Human immunoglobulin M (IgM) memory B cells, which are functionally equivalent to mouse B-1a B cells, are reduced after splenectomy. Objective: To demonstrate whether IgM memory B cells are necessary for generating IgA-secreting plasma ...

journal_title：Frontiers in immunology

authors： Carsetti R,Di Sabatino A,Rosado MM,Cascioli S,Piano Mortari E,Milito C,Grimsholm O,Aranburu A,Giorda E,Tinozzi FP,Pulvirenti F,Donato G,Morini F,Bagolan P,Corazza GR,Quinti I

更新日期：2020-01-08 00:00:00

abstract：:The onset of hepatic disorders in patients with systemic lupus erythematosus (SLE) is frequent; however, the etiology and liver pathogenesis of SLE remain unknown. In the present study, the role of hepatic deposited immunoglobulin G (IgG) in SLE-derived liver damage was investigated. From a retrospective analysis of t...

journal_title：Frontiers in immunology

authors： Fang X,Zaman MH,Guo X,Ding H,Xie C,Zhang X,Deng GM

更新日期：2018-06-25 00:00:00

abstract：:Background: Vascular microthrombotic lesions in lupus nephritis with or without antiphospholipid antibodies may relate to worse renal outcomes. Whether microthrombotic lesions are a consequence of renal inflammation or independently contribute to renal damage is unclear. Our aim was to investigate the relationship bet...

journal_title：Frontiers in immunology

authors： Gonzalo-Gil E,García-Herrero C,Toldos O,Usategui A,Criado G,Pérez-Yagüe S,Barber DF,Pablos JL,Galindo M

更新日期：2018-08-28 00:00:00

abstract：:We recently reported that the treatment with nanoparticles (NPs) loaded with tolerogenic cytokines suppressed the manifestations of lupus-like disease induced by the transfer of donor CD4+ T cells from DBA/2 mice into (C57BL/6 × DBA/2)F1 (BDF1) mice. Although the protective effects were ascribed to the induction of ad...

journal_title：Frontiers in immunology

authors： Horwitz DA,Liu A,Bickerton S,Castaldo G,Matarese G,Fahmy TM,La Cava A

更新日期：2020-12-16 00:00:00

abstract：:Allogeneic hematopoietic stem cell transplantation is a potentially curative procedure for many malignant diseases. Donor T cells prevent disease recurrence via graft-versus-leukemia (GVL) effect. Donor T cells also contribute to graft-versus-host disease (GVHD), a debilitating and potentially fatal complication. Nove...

journal_title：Frontiers in immunology

authors： Mammadli M,Huang W,Harris R,Sultana A,Cheng Y,Tong W,Pu J,Gentile T,Dsouza S,Yang Q,Bah A,August A,Karimi M

更新日期：2020-11-26 00:00:00

abstract：:Resident memory T cells (TRM) are broadly defined as a population of T cells, which persist in non-lymphoid sites long-term, do not re-enter the circulation, and are distinct from central memory T cells (TCM) and circulating effector memory T cells (TEM). Recent studies have described populations of TRM cells in the s...

journal_title：Frontiers in immunology

authors： Shane HL,Klonowski KD

更新日期：2014-07-08 00:00:00

abstract：:Introduction: Aerobic exercise improves lung inflammation in acute lung injury (ALI), but its mechanism remains unknown. Neutrophil extracellular traps (NETs) play an important role in LPS-induced ALI, and a positive correlation exists between NET formation and proinflammatory macrophage polarization. This study inves...

journal_title：Frontiers in immunology

authors： Shi Y,Liu T,Nieman DC,Cui Y,Li F,Yang L,Shi H,Chen P

更新日期：2020-03-19 00:00:00

abstract：:Sepsis is characterized by the host's dysregulated immune response to an infection followed by a potentially fatal organ dysfunction. Although there have been some advances in the treatment of sepsis, mainly focused on broad-spectrum antibiotics, mortality rates remain high, urging for the search of new therapies. Oxi...

journal_title：Frontiers in immunology

authors： Navegantes-Lima KC,Monteiro VVS,de França Gaspar SL,de Brito Oliveira AL,de Oliveira JP,Reis JF,de Souza Gomes R,Rodrigues CA,Stutz H,Sovrani V,Peres A,Romão PRT,Monteiro MC

更新日期：2020-07-01 00:00:00

abstract：:Susceptibility to ankylosing spondylitis (AS) is polygenic with more than 100 genes identified to date. These include HLA-B27 and the aminopeptidases (ERAP1, ERAP2, and LNPEPS), which are involved in antigen processing and presentation to T-cells, and several genes (IL23R, IL6R, STAT3, JAK2, IL1R1/2, IL12B, and IL7R) ...

journal_title：Frontiers in immunology

authors： Vecellio M,Cohen CJ,Roberts AR,Wordsworth PB,Kenna TJ

更新日期：2019-01-10 00:00:00

abstract：:Natural killer (NK) cells are potent cytotoxic effector cells for cancer therapy and potentially for severe viral infections. However, there are technical challenges to obtain sufficient numbers of functionally active NK cells from a patient's blood since they represent only 10% of the lymphocytes and are often dysfun...

journal_title：Frontiers in immunology

authors： Klingemann H,Boissel L,Toneguzzo F

更新日期：2016-03-14 00:00:00