نتایج جستجو برای: t regulatory cells treg

تعداد نتایج: 2028555  

Abolghasem Ajami, Alireza Rafiei, Hadi Hussein-Nattaj Hamideh Mesali Hossein Asgarian-Omran Mohsen Tehrani, Tarang Taghvaei Vahid Hosseini Zeinab Rajabian

Background: Regulatory T Cells (Tregs) and Myeloid-Derived Suppressor Cells (MDSCs) are two main regulatory cells modulating the immune responses in inflammation and cancer. Objective: To investigate and compare Tregs and MDSCs in peptic ulcer and gastric cancer. Methods: Patients with dyspepsia were selected and divided into three groups of non-ulcer dyspepsia (NUD, n=22), peptic ulcer disease...

Background and Objectives: Multiple sclerosis (MS) is an autoimmune neurodegenerative disease of the central nervous system (CNS). Although, the contribution of various cells such as  B cells, CD8+ T cells, microglia/macrophages, dendritic cells, asterocytes and mast cells in the pathogenesis of MS have been demonstrated, however, it seems that autoreactive myelin specific CD4+ T cells pla...

Journal: :iranian journal of immunology 0
babak aghili department of immunology, school of medicine ali akbar amirzargar department of immunology, school of medicine asadollah rajab department of endocrinology, iranian diabetes association ali rabbani growth and development center, tehran university of medical sciences, children's medical center arya sotoudeh growth and development center, tehran university of medical sciences, children's medical center sara assadiasl department of immunology, school of medicine bagher larijani

background: type 1 diabetes (t1d) is a t cell mediated autoimmune disease targeting the insulin-producing β cells within pancreatic islets. autoimmune diseases may develop as a consequence of altered balance between regulatory (tregs) and autoreactive t cells. objectives: to evaluate treg cells frequency and suppressive function in the peripheral blood of newly diagnosed t1d patients in compari...

Journal: :iranian journal of allergy, asthma and immunology 0
fereshteh alsahebfosoul department of immunology, faculty of medical sciences, tarbiat modares university, tehran, iran ahmad zavaran-hosseini department of immunology, faculty of medical sciences, tarbiat modares university, tehran, iran rasoul salehi department of molecular biology faculty of medicine, isfahan university of medical sciences, tehran, iran masood etemadifar neurology department, faculty of medicine, isfahan university of medical sciences, isfahan, iran nafiseh esmaeil department of immunology, faculty of medicine, isfahan university of medical sciences, isfahan, iran azam jamshidian department of immunology, faculty of medicine, shahrekord university of medical sciences, shahrekord, iran.

soluble forms of nonclassical human leukocyte antigen (hla)-g have recently been suggested as immunomodulatory factors in multiple sclerosis (ms). hla-g inhibits the effecter function of t cells and natural killer (nk) cells. also regulatory t cells (treg) are considered as pivotal players in ms pathogenesis. thus, we aimed to evaluate the presence of hla-g molecules and treg cells in relapsing...

ژورنال: ارمغان دانش 2022

Background and purpose: CD4+CD25+FOXP3+ regulatory T cells (CD4+CD25+FOXP3+ Tregs) are a group of T lymphocytes that play an important role in regulating immune system responses by suppressing the activity of other T cells and establishing homeostasis in the immune system. Th1 and Th2 cells are other groups of CD4+ cells that play important functions in inducing inflammatory immune responses. C...

Journal: :iranian journal of immunology 0
samira ghorbani gazar department of immunology alireza andalib department of immunology mohammad hashemi department of internal medicine, isfahan medical school, isfahan university of medical sciences, isfahan, iran abbas rezaei department of immunology

background: atherosclerosis is a multifactorial disorder with chronic inflammatory conditions in which immune cells play a significant role in its pathogenic process. regulatory t cells (treg), as a part of immune system, are involved in controlling autoimmune and inflammatory diseases. quantitative and/or functional alteration of tregs has been shown to play an atheroprotective role and may al...

ژورنال: دانشور پزشکی 2019
بزرگمهر, محمود, ثابت پور, علیرضا, زند, نفیسه, غضنفری, طوبی, فقیه زاده, سقراط,

Background and Objective: Regulatory T cells (Treg) are the subgroups of lymphocytes that control inflammation response and regulates homeostasis by mechanisms of cellular contact and secretion of soluble agents. Here, we investigated percentage of Treg in peripheral blood of sulfur mustard-exposed patients with CD4, CD25, CD127, FOXP3 markers in comparison with healthy individuals and the corr...

Journal: :iranian journal of allergy, asthma and immunology 0
esmaeil mortaz department of immunology, medical school, shahid beheshti university of medical sciences, tehran, iran and chronic respiratory diseases research center and national research institute of tuberculosis and lung diseases (nritld), department of immunology, shahid beheshti university of medical sciences, tehran, iran and airways disease section, national heart and lung institute, imperial college london, london, uk fatemeh rezayat department of immunology, medical school, shahid beheshti university of medical sciences, tehran, iran davar amani department of immunology, medical school, shahid beheshti university of medical sciences, tehran, iran arda kiani chronic respiratory diseases research center and national research institute of tuberculosis and lung diseases (nritld), department of immunology, shahid beheshti university of medical sciences, tehran, iran johan garssen division of pharmacology, utrecht institute for pharmaceutical sciences, faculty of science, utrecht university, utrecht, the netherlands ian m. adcock airways disease section, national heart and lung institute, imperial college london, london, uk

sarcoidosis is a systemic granulomatous disorder of unidentified etiology, with a heterogeneous clinical presentation. it is characterized by a reduced delayed-type hypersensitivity to tuberculin and common antigens. the balance between th1, th17 and regulatory t(treg) cells controls t-cell proliferation and activation.the th17/treg ratio in the peripheral blood and bronchoalveolar lavage fluid...

Journal: :Journal of Neuroimmunology 2021

We investigated the association between cellular immunity and age-related hearing loss (ARHL) development using three CD4+ T cell fractions, namely, naturally occurring regulatory cells (Treg), interleukin 1 receptor type 2-expressing (I1R2), non-Treg non-I1R2 (nTnI) cells, which comprised Treg I1R2-deleted cells. Inoculation of nTnI fraction into a ARHL murine model, not only prevented degener...

Journal: :iranian journal of immunology 0
hamideh mesali department of immunology, school of medicine abolghasem ajami department of immunology, school of medicine hadi hussein-nattaj department of immunology, school of medicine alireza rafiei department of immunology, school of medicine zeinab rajabian department of immunology, school of medicine hossein asgarian-omran department of immunology, school of medicine vahid hosseini

background: regulatory t cells (tregs) and myeloid-derived suppressor cells (mdscs) are two main regulatory cells modulating the immune responses in inflammation and cancer. objective: to investigate and compare tregs and mdscs in peptic ulcer and gastric cancer. methods: patients with dyspepsia were selected and divided into three groups of non-ulcer dyspepsia (nud, n=22), peptic ulcer disease...

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