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CD4(+)CD25(+)FOXP3(+) T

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https://www.readbyqxmd.com/read/28921730/comparison-of-the-percentages-of-cd4-%C3%A2-cd25-high-%C3%A2-foxp3-cd4-%C3%A2-cd25-low-%C3%A2-foxp3-and-cd4-%C3%A2-foxp3-tregs-in-the-umbilical-cord-blood-of-babies-born-to-mothers-with-and-without-preeclampsia
#1
Farha El-Chennawi, Ibrahim Mohamed Rageh, Amira Ibrahim Mansour, Mohammed Ibrahim Darwish, Ashraf Antar Elghzaly, Basma El Sayed Sakr, Khaled Mohsen Elbaz
PROBLEM: Little is known about how preeclampsia affects regulatory T-cell count and functions in umbilical cord blood of babies born to preeclamptic mothers. Here, we analyze the percentage of CD4(+)  CD25(high)  FOXP3(+) , CD4(+)  CD25(low)  FOXP3(+) , and CD4(+)  FOXP3(+) Tregs, in the umbilical cord blood of babies born to mothers with and without preeclampsia. METHOD OF STUDY: The percentage of umbilical cord blood CD4(+)  CD25(high)  FOXP3(+) , CD4(+)  CD25(low)  FOXP3(+) , and CD4(+)  FOXP3(+) Tregs were analyzed by flow cytometry...
September 16, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28913840/loss-of-regulatory-characteristics-in-cd4-cd25-hi-t-cells-induced-by-impaired-transforming-growth-factor-beta-secretion-in-pneumoconiosis
#2
Lu-Qin Bian, Ling Mao, Ying Bi, Shao-Wei Zhou, Zi-Dan Chen, Jun Wen, Jin Shi, Ling Wang
Pneumoconiosis is caused by the accumulation of airborne dust in the lung, which stimulates a progressive inflammatory response that ultimately results in lung fibrosis and respiratory failure. It is possible that regulatory cells in the immune system could function to suppress inflammation and possibly slow or reverse disease progression. However, results in this study suggest that in pneumoconiosis patients, the regulatory T cells (Tregs) and B cells are functionally impaired. First, we found that pneumoconiosis patients presented an upregulation of CD4(+) CD25(+) T cells compared to controls, whereas the CD4(+) CD25(+) and CD4(+) CD25(hi) T cells were enriched with Th1- and Th17-like cells but not Foxp3-expressing Treg cells and evidenced by significantly higher T-bet, interferon (IFN)-γ, and interleukin (IL)-17 expression but lower Foxp3 and transforming growth factor (TGF)-β expression...
September 15, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28910895/-correlation-analysis-of-the-epstein-barr-virus-recruited-regulatory-t-cells-in-nasopharyngeal-carcinoma-of-immune-escape
#3
P Bi, J Wang, J Lu, X Liu, F Wang, Y F Luo, S D Peng, X P Li
Objective: To investigate the relation of Epstein-Barr virus (EBV)-induced immune escape to regulatory T cells(Treg) in nasopharyngeal carcinoma(NPC). Methods: We recruited 83 patients who were pathologically diagnozed as nasopharyngeal carcinoma and treated in Nanfang Hospital from January to September 2016. CD4(+) CD25(+) FOXP3(+) Treg in peripheral blood was examined by flow cytometry and the level of EBV DNA in the blood was detected by quantitative real-time polymerase chain reaction(qRT-PCR)in 83 patients and 51 healthy adults as control...
September 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28910785/oral-tolerization-with-mycobacterial-heat-shock-protein-65-reduces-chronic-experimental-atherosclerosis-in-aged-mice
#4
Cecilia Wick, Elisabeth Onestingel, Egon Demetz, Hermann Dietrich, Georg Wick
BACKGROUND: Atherosclerosis is a chronic inflammatory disease of the artery wall where both innate and adaptive immunity play important roles. Modulation of the immune response against the stress protein antigen, heat shock protein (HSP) 60, by administration of mycobacterial HSP65 (mbHSP65) orally and/or nasally shows promising therapeutic results in young animals in the sense of less severe experimental atherosclerosis; however, the case of aged animals with already established atherosclerosis has so far never been investigated...
September 15, 2017: Gerontology
https://www.readbyqxmd.com/read/28901888/effects-of-oral-lactobacillus-administration-on-antioxidant-activities-and-cd4-cd25-forkhead-box-p3-foxp3-t-cells-in-nzb-w-f1-mice
#5
Bor-Show Tzang, Chung-Hsien Liu, Kuo-Ching Hsu, Yi-Hsing Chen, Chih-Yang Huang, Tsai-Ching Hsu
Systemic lupus erythematosus (SLE) is an autoimmune disease that is characterised by a dysregulation of the immune system, which causes inflammation responses, excessive oxidative stress and a reduction in the number of cluster of differentiation (CD)4+CD25+forkhead box P3 (FoxP3)+ T cells. Supplementation with certain Lactobacillus strains has been suggested to be beneficial in the comprehensive treatment of SLE. However, little is known about the effect and mechanism of certain Lactobacillus strains on SLE...
September 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28901186/recipient-adipose-derived-stem-cells-enhance-recipient-cell-engraftment-and-prolong-allotransplant-survival-in-a-miniature-swine-hind-limb-model
#6
Yur-Ren Kuo, Chien-Chang Chen, Yen-Chou Chen, Ching-Ming Chien
Donor mesenchymal stem cells (MSCs) could prolong vascularized composite allotransplantation (VCA) survival in our previous studies. However, recipient adipose tissue is easier to harvest than donor tissue for preconditioning modulation. Hence, this study investigated the efficacy of recipient autologous adipose-derived stem cells (rADSCs) for VCA survival. The heterotopic hind-limb transplantation from female donor to male recipient was performed in outbred miniature swine. Group I ( n = 6) was untreated controls...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28894978/hydrogen-rich-saline-ameliorates-allergic-rhinitis-by-reversing-the-imbalance-of-th1-th2-and-up-regulation-of-cd4-cd25-foxp3-regulatory-t-cells-interleukin-10-and-membrane-bound-transforming-growth-factor-%C3%AE-in-guinea-pigs
#7
Feifei Xu, Shaoqing Yu, Mali Qin, Yong Mao, Ling Jin, Na Che, Shuangxi Liu, Rongming Ge
It is well known that CD4+CD25+Foxp3+Treg cells play an important role in the development of allergic rhinitis (AR); the defect of cell numbers and functions contribute to AR. Hydrogen has been proven effective in alleviating symptoms of AR. We herein aim to verify the protective effects of hydrogen on CD4+CD25+Foxp3+Treg cells in guinea pigs with AR and to explore the effect of hydrogen-rich saline (HRS) on CD4+CD25+Foxp3+Treg cells in animals with AR and investigate the underlying anti-inflammatory mechanism...
September 11, 2017: Inflammation
https://www.readbyqxmd.com/read/28893978/gut-bacteria-from-multiple-sclerosis-patients-modulate-human-t-cells-and-exacerbate-symptoms-in-mouse-models
#8
Egle Cekanaviciute, Bryan B Yoo, Tessel F Runia, Justine W Debelius, Sneha Singh, Charlotte A Nelson, Rachel Kanner, Yadira Bencosme, Yun Kyung Lee, Stephen L Hauser, Elizabeth Crabtree-Hartman, Ilana Katz Sand, Mar Gacias, Yungjiao Zhu, Patrizia Casaccia, Bruce A C Cree, Rob Knight, Sarkis K Mazmanian, Sergio E Baranzini
The gut microbiota regulates T cell functions throughout the body. We hypothesized that intestinal bacteria impact the pathogenesis of multiple sclerosis (MS), an autoimmune disorder of the CNS and thus analyzed the microbiomes of 71 MS patients not undergoing treatment and 71 healthy controls. Although no major shifts in microbial community structure were found, we identified specific bacterial taxa that were significantly associated with MS. Akkermansia muciniphila and Acinetobacter calcoaceticus, both increased in MS patients, induced proinflammatory responses in human peripheral blood mononuclear cells and in monocolonized mice...
September 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28892752/graphene-quantum-dots-suppress-proinflammatory-t-cell-responses-via-autophagy-dependent-induction-of-tolerogenic-dendritic-cells
#9
Sergej Tomić, Kristina Janjetović, Dušan Mihajlović, Marina Milenković, Tamara Kravić-Stevović, Zoran Marković, Biljana Todorović-Marković, Zdenko Spitalsky, Matej Micusik, Dragana Vučević, Miodrag Čolić, Vladimir Trajković
Graphene quantum dots (GQD) are atom-thick nanodimensional carbon sheets with excellent physico-chemical and biological properties, making them attractive for application in theranostics. However, their immunoregulatory properties are insufficiently investigated, especially in human primary immune cells. We found that non-toxic doses of GQD inhibit the production of proinflammatory and T helper (Th)1 cytokines, and augment the production of anti-inflammatory and Th2 cytokines by human peripheral blood mononuclear cells...
August 29, 2017: Biomaterials
https://www.readbyqxmd.com/read/28891726/nk-cell-effector-functions-regulation-by-modulating-ntreg-cell-population-during-progressive-growth-of-dalton-s-lymphoma-in-mice
#10
Munendra Singh Tomar, Sanjay Kumar, Sanjay Kumar, Pramod Kumar Gautam, Rishi Kant Singh, Praveen Kumar Verma, Surya Pratap Singh, Arbind Acharya
Natural killer (NK) cells are large granular lymphocytes of the innate immune system and play a pivotal role against virus-infected cells, microbial pathogens, and tumor cells. NK cells secrete several cytokine,s but IFN-γ secreted by NK cells play a vital role in the activation of the innate and adaptive immune systems. But during any infection or tumor burden, functional activity of NK cells is downregulated significantly by nTreg cells. It is also found that during tumor progression, the number of nTreg cells increases as a result; it effectively suppresses the antitumor activity of NK cells...
September 11, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28890870/treg-th17-cell-balance-and-phytohaemagglutinin-activation-of-t-lymphocytes-in-peripheral-blood-of-systemic-sclerosis-patients
#11
Ekaterina Krasimirova, Tsvetelina Velikova, Ekaterina Ivanova-Todorova, Kalina Tumangelova-Yuzeir, Desislava Kalinova, Vladimira Boyadzhieva, Nikolay Stoilov, Tsvetelina Yoneva, Rasho Rashkov, Dobroslav Kyurkchiev
AIM: To investigate T-cell activation, the percentage of peripheral T regulatory cells (Tregs), Th17 cells and the circulating cytokine profile in systemic sclerosis (SSc). METHODS: We enrolled a total of 24 SSc patients and 16 healthy controls in the study and divided the patients as having diffuse cutaneous SSc (dcSSc, n = 13) or limited cutaneous SSc (lcSSc, n = 11). We performed a further subdivision of the patients regarding the stage of the disease - early, intermediate or late...
August 20, 2017: World Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28887367/tfr-cells-lack-il-2r%C3%AE-but-express-decoy-il-1r2-and-il-1ra-and-suppress-the-il-1-dependent-activation-of-tfh-cells
#12
Paul-Gydeon G Ritvo, Guillame Churlaud, Valentin Quiniou, Laura Florez, Faustine Brimaud, Gwladys Fourcade, Encarnita Mariotti-Ferrandiz, David Klatzmann
Follicular regulatory T (Tfr) cells from lymph node germinal centers control follicular helper T (Tfh) cell-dependent B cell activation. These scarce cells, often described and purified as CD25(+) cells, are thought to be derived from thymic regulatory T (Treg) cells. However, we observed that mouse Tfr cells do not respond to interleukin-2 (IL-2), unlike Treg cells. Stringent immunophenotyping based on B cell lymphoma 6 (Bcl6), programmed cell death protein 1 (PD-1), and CXCR5 expression revealed that Tfr cells are actually CD25(-), in mice and humans...
September 8, 2017: Science Immunology
https://www.readbyqxmd.com/read/28886713/increased-activated-regulatory-t-cells-proportion-correlate-with-the-severity-of-idiopathic-pulmonary-fibrosis
#13
Ziliang Hou, Qiao Ye, Meihua Qiu, Yu Hao, Junyan Han, Hui Zeng
BACKGROUND: Regulatory T cells (Tregs) are crucial in maintaining immune tolerance and immune homeostasis, but their role in idiopathic pulmonary fibrosis (IPF) is unclear. This study was designed to explore the role of Tregs in IPF. METHODS: Percentages of Tregs and their subpopulations in peripheral blood (PB) and bronchoalveolar lavage (BAL) samples were determined by flow cytometry in 29 patients with IPF, 19 patients with primary Sjögren's syndrome-related interstitial pneumonia (pSS-IP), and 23 healthy controls (HCs)...
September 8, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28881482/altered-expression-of-antigen-specific-memory-and-regulatory-t-cell-subsets-differentiate-latent-and-active-tuberculosis
#14
Balaji Pathakumari, Santhi Devasundaram, Alamelu Raja
Though one-third of the world population is infected with M. tuberculosis, only 5-10% of the infected individuals will develop active TB disease and rest will remain infected with no symptoms known as latent TB infection (LTBI). Identifying biomarkers that differentiate latent and active TB disease enables effective TB control, since early detection, treatment of active TB and preventive treatment of LTBI individuals are crucial steps involved in TB control. Here, we have evaluated the frequency of antigen specific memory and regulatory T cells (Tregs) in 15 healthy household contacts (HHC) and 15 pulmonary TB patients (PTB) to identify biomarkers for differential diagnosis of LTBI and active TB...
September 7, 2017: Immunology
https://www.readbyqxmd.com/read/28880903/functional-differences-between-pd-1-and-pd-1-cd4-effector-t-cells-in-healthy-donors-and-patients-with-glioblastoma-multiforme
#15
Brittany A Goods, Amanda L Hernandez, Daniel E Lowther, Liliana E Lucca, Benjamin A Lerner, Murat Gunel, Khadir Raddassi, Vlad Coric, David A Hafler, J Christopher Love
Immune checkpoint inhibitors targeting programmed cell death protein 1 (PD-1) have been highly successful in the treatment of cancer. While PD-1 expression has been widely investigated, its role in CD4+ effector T cells in the setting of health and cancer remains unclear, particularly in the setting of glioblastoma multiforme (GBM), the most aggressive and common form of brain cancer. We examined the functional and molecular features of PD-1+CD4+CD25-CD127+Foxp3-effector cells in healthy subjects and in patients with GBM...
2017: PloS One
https://www.readbyqxmd.com/read/28869950/interleukin-10-gene-modified-dendritic-cell-induced-type-1-regulatory-t-cells-induce-transplant-tolerance-and-impede-graft-versus-host-disease-after-allogeneic-stem-cell-transplantation
#16
Jiangbo Wan, Fang Huang, Siguo Hao, Weiwei Hu, Chuanxu Liu, Wenhao Zhang, Xiaohui Deng, Linjun Chen, Liyuan Ma, Rong Tao
BACKGROUND/AIMS: Tr1 cells can induce peripheral tolerance to self- and foreign antigens, and have been developed as a therapeutic tool for the induction of tolerance to transplanted tissue. We explored the feasibility of generating Tr1 cells by using IL-10 gene-modified recipient DCs (DCLV-IL-10) to stimulate donor naive CD4+ T cells. We also investigated some biological properties of Tr1 cells. METHODS: DCLV-IL-10 were generated through DCs transduced with a lentivirus vector carrying the IL-10 gene, and Tr1 cells were produced by using DCLV-IL-10 to stimulate naive CD4+ T cells...
August 31, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28869918/circulating-cd4-pd-1-and-cd8-pd-1-t-cells-are-profoundly-decreased-at-the-onset-of-fulminant-type-1-diabetes-and-are-restored-by-treatment-contrasting-with-cd4-cd25-foxp3-regulatory-t-cells
#17
Toshie Iijima, Kanako Kato, Teruo Jojima, Takanori Tomotsune, Maiko Fukushima, Kunihiro Suzuki, Yoshimasa Aso
Programed cell death protein-1 (PD-1) is an inhibitory receptor expressed by T cells that downregulates the activation and proliferation of these cells to maintain peripheral self-tolerance. Recent studies reported some cases of new-onset type 1 diabetes (T1D) under anti-PD1 or PDL-1 antibodies. We demonstrated that circulating both CD4+PD-1+ and CD8+PD-1+ T cells were profoundly reduced at the onset of fulminant T1D and were restored by treatment in two patients with fulminant T1D.
July 31, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28842469/a20-restrains-thymic-regulatory-t-cell-development
#18
Julius Clemens Fischer, Vera Otten, Maike Kober, Christoph Drees, Marc Rosenbaum, Martina Schmickl, Simon Heidegger, Rudi Beyaert, Geert van Loo, Xian Chang Li, Christian Peschel, Marc Schmidt-Supprian, Tobias Haas, Silvia Spoerl, Hendrik Poeck
Maintaining immune tolerance requires the production of Foxp3-expressing regulatory T (Treg) cells in the thymus. Activation of NF-κB transcription factors is critically required for Treg cell development, partly via initiating Foxp3 expression. NF-κB activation is controlled by a negative feedback regulation through the ubiquitin editing enzyme A20, which reduces proinflammatory signaling in myeloid cells and B cells. In naive CD4(+) T cells, A20 prevents kinase RIPK3-dependent necroptosis. Using mice deficient for A20 in T lineage cells, we show that thymic and peripheral Treg cell compartments are quantitatively enlarged because of a cell-intrinsic developmental advantage of A20-deficient thymic Treg differentiation...
August 25, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28841693/the-effect-of-aqueous-extract-of-xinjiang-artemisia-rupestris-l-an-influenza-virus-vaccine-adjuvant-on-enhancing-immune-responses-and-reducing-antigen-dose-required-for-immunity
#19
Ailian Zhang, Danyang Wang, Jinyao Li, Feng Gao, Xucheng Fan
Potent adjuvant can improve the effectiveness of vaccines and reduce the antigen doses required for initiating the protective immunity. In this study, we identified that aqueous extract of Artemisia rupestris L. (AEAR) could be employed as an efficient adjuvant for influenza virus vaccine (V) to enhance immune responses and reduce the antigen doses required for initiating immunity, without compromising the immune response. ICR mice were subcutaneously co-administrated with V combined with different concentrations of AEAR demonstrated that 300 μg AEAR could significantly improve hemagglutination inhibition (HI) and increase IgG antibody titers in serum (P<0...
2017: PloS One
https://www.readbyqxmd.com/read/28839202/norcantharidin-combined-with-coix-seed-oil-synergistically-induces-apoptosis-and-inhibits-hepatocellular-carcinoma-growth-by-downregulating-regulatory-t-cells-accumulation
#20
Dan Wang, Chendong Yang, Zhuien Wang, Yi Yang, Defang Li, Xiaojie Ding, Wenjuan Xu, Qiusheng Zheng
The immune system plays a critical role in exerts effects in the growth and progression of hepatocellular carcinoma (HCC), which needs interacting approaches for effective therapy. In this study, we have found that the Norcantharidin (NCTD) + Coix lacryma-jobi seed oil (CLSO) combination exhibited more potent antitumor effects in an terms of cytotoxicity and apoptotic induction in human HepG2 and HepG2/ADM cells than NCTD or CLSO alone. In vivo, administration of NCTD+CLSO combinations significantly suppressed the formation of tumor in Hepal-1 hepatoma-bearing mice...
August 24, 2017: Scientific Reports
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