keyword
MENU ▼
Read by QxMD icon Read
search

Foxp3 transplant

keyword
https://www.readbyqxmd.com/read/28808483/therapeutic-immune-monitoring-of-cd4-cd25-t-cells-in-chronic-myeloid-leukemia-patients-treated-with-tyrosine-kinase-inhibitors
#1
Ziyuan Lu, Na Xu, Xuan Zhou, Guanlun Gao, Lin Li, Jixian Huang, Yuling Li, Qisi Lu, Bolin He, Chengyun Pan, Xiaoli Liu
Tyrosine kinase inhibitors (TKIs), including imatinib, dasatinib and nilotinib, are effective forms of therapy for various types of solid cancers and Philadelphia chromosome-positive (Ph(+)) chronic myeloid leukemia. A number of TKIs have been known to have strong effects on T cells, particularly cluster of differentiation (CD) 4(+)CD25(+) T cells, also known as regulatory T cells (Tregs). There is currently a deficit in the available clinical data regarding this area of study. In the present study, a total of 108 peripheral blood samples were collected from patients with chronic myeloid leukemia (CML) at diagnosis (n=31), and at 3 and 6 months following treatment with TKI [imatinib (n=12), dasatinib (n=11) and nilotinib groups (n=8)] and healthy controls (n=15)...
August 2017: Oncology Letters
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
#2
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
#3
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/28777210/rapamycin-prolongs-graft-survival-and-induces-cd4-ifn-%C3%AE-il-10-regulatory-type-1-cells-in-old-recipient-mice
#4
Markus Quante, Timm Heinbokel, Karoline Edtinger, Koichiro Minami, Hirofumi Uehara, Yeqi Nian, Haruhito Azuma, Reza Abdi, Abdallah Elkhal, Stefan G Tullius
BACKGROUND: Although the elderly represents a rapidly growing population among transplant recipients, age-specific aspects have not been considered sufficiently in clinical trials. Moreover, age-specific effects of immunosuppressive therapies remain poorly understood. METHODS: Here, we assessed the impact of Rapamycin on alloimmune responses in old recipients using a fully MHC-mismatched murine transplantation model. RESULTS: Old untreated recipients displayed a prolonged skin graft survival compared to their young counterparts, an observation that confirmed data of our previous experiments...
August 2, 2017: Transplantation
https://www.readbyqxmd.com/read/28769930/anti-interleukin-6-promotes-allogeneic-bone-marrow-engraftment-and-prolonged-graft-survival-in-an-irradiation-free-murine-transplant-model
#5
Nicolas Granofszky, Andreas M Farkas, Moritz Muckenhuber, Benedikt Mahr, Lukas Unger, Svenja Maschke, Nina Pilat, Raimund Holly, Mario Wiletel, Heinz Regele, Thomas Wekerle
Transfer of recipient regulatory T cells (Tregs) induces mixed chimerism and tolerance in an irradiation-free bone marrow (BM) transplantation (BMT) model involving short-course co-stimulation blockade and mTOR inhibition. Boosting endogenous Tregs pharmacologically in vivo would be an attractive alternative avoiding the current limitations of performing adoptive cell therapy in the routine clinical setting. Interleukin-6 (IL-6) potently inhibits Treg differentiation and its blockade was shown to increase Treg numbers in vivo...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28757397/low-utility-of-serum-25-hydroxyvitamin-d3-and-1-25-dihydroxyvitamin-d3-in-predicting-peripheral-treg-and-th17-cell-counts-in-esrd-and-renal-transplant-patients
#6
Mostafa G Aly, Li Zhu, Rolf Weimer, Gerhard Opelz, Christian Morath, Ruben Kuon, Mohammed Tohamy, Gamal Saadi, Mona Soliman, Walaa Ibrahim, Volker Daniel
BACKGROUND: Vitamin D has shown an immune-modulatory effect in different studies. Vitamin D stimulates Tregs and inhibits Th17 cells. The immune-modulatory role of vitamin D in chronic kidney disease (CKD) and renal transplant patients is unclear. We measured whether different serum levels of vitamin D were associated with an increased or decreased presence of lymphocyte subsets including Treg and Th17 cells in end-stage renal disease (ESRD) and renal transplant recipients. METHODS: Eighty-seven renal transplant recipients and 53 end-stage renal disease (ESRD) patients were enrolled in this study...
July 27, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28746369/single-and-combined-effect-of-retinoic-acid-and-rapamycin-modulate-the-generation-activity-and-homing-potential-of-induced-human-regulatory-t-cells
#7
Enzo Candia, Paz Reyes, Camila Covian, Francisco Rodriguez, Nicolas Wainstein, Jorge Morales, Claudio Mosso, Mario Rosemblatt, Juan Alberto Fierro
Adoptive transfer of CD4+CD25+FOXP3+ regulatory T cells (Treg cells) has been successfully utilized to treat graft versus host disease and represents a promising strategy for the treatment of autoimmune diseases and transplant rejection. The aim of this study was to evaluate the effects of all-trans retinoic acid (atRA) and rapamycin (RAPA) on the number, phenotype, homing markers expression, DNA methylation, and function of induced human Treg cells in short-term cultures. Naive T cells were polyclonally stimulated and cultured for five days in the presence of different combinations of IL-2, TGF-β1, atRA and RAPA...
2017: PloS One
https://www.readbyqxmd.com/read/28738016/eomesodermin-promotes-the-development-of-type-1-regulatory-t-tr1-cells
#8
Ping Zhang, Jason S Lee, Kate H Gartlan, Iona S Schuster, Iain Comerford, Antiopi Varelias, Md Ashik Ullah, Slavica Vuckovic, Motoko Koyama, Rachel D Kuns, Kelly R Locke, Kirrilee J Beckett, Stuart D Olver, Luke D Samson, Marcela Montes de Oca, Fabian de Labastida Rivera, Andrew D Clouston, Gabrielle T Belz, Bruce R Blazar, Kelli P MacDonald, Shaun R McColl, Ranjeny Thomas, Christian R Engwerda, Mariapia A Degli-Esposti, Axel Kallies, Siok-Keen Tey, Geoffrey R Hill
Type 1 regulatory T (TR1) cells are Foxp3(-) interleukin-10 (IL-10)-producing CD4(+) T cells with potent immunosuppressive properties, but their requirements for lineage development have remained elusive. We show that TR1 cells constitute the most abundant regulatory population after allogeneic bone marrow transplantation (BMT), express the transcription factor Eomesodermin (Eomes), and are critical for the prevention of graft-versus-host disease. We demonstrate that Eomes is required for TR1 cell differentiation, during which it acts in concert with the transcription factor B lymphocyte-induced maturation protein-1 (Blimp-1) by transcriptionally activating IL-10 expression and repressing differentiation into other T helper cell lineages...
April 7, 2017: Science Immunology
https://www.readbyqxmd.com/read/28736026/yogurt-feeding-induced-the-prolongation-of-fully-major-histocompatibility-complex-mismatched-murine-cardiac-graft-survival-by-induction-of-cd4-foxp3-cells
#9
M Uchiyama, E Yin, T Yanagisawa, X Jin, M Hara, S Matsuyama, T Imazuru, K Uchida, M Kawamura, M Niimi
Yogurt is a nutrient-rich food and the beneficial effects of yogurt on both health and immunomodulatory effects are well documented. In this pilot study, we investigated the effects of commercially produced yogurt R-1 on alloimmune responses in a murine cardiac transplantation model. The R-1 is produced by Meiji Co., Ltd., and contains live and active lactic acid bacteria (lactobacillus bulgaricus OLL1073R-1) mainly. CBA (H2(k)) mice underwent transplantation of a C57BL/6 (H2(b); B6) heart and received oral administration of 1 mL, 0...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28720146/analysis-of-long-term-cd4-cd25highcd127-t-reg-cells-kinetics-in-peripheral-blood-of-lung-transplant-recipients
#10
Davide Piloni, Monica Morosini, Sara Magni, Alice Balderacchi, Luigia Scudeller, Emanuela Cova, Tiberio Oggionni, Giulia Stella, Carmine Tinelli, Filippo Antonacci, Andrea Maria D'Armini, Federica Meloni
BACKGROUND: The role of CD4(+)CD25(high)CD127(-) T-reg cells in solid-organ Transplant (Tx) acceptance has been extensively studied. In previous studies on kidney and liver recipients, peripheral T-reg cell counts were associated to graft survival, while in lung Tx, there is limited evidence for similar findings. This study aims to analyze long term peripheral kinetics of T-reg-cells in a cohort of lung recipients and tests its association to several clinical variables. METHODS: From jan 2009 to dec 2014, 137 lung Tx recipients were submitted to an immunological follow up (median: 105...
July 18, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28706983/preimplantation-kidney-biopsies-of-extended-criteria-donors-have-a-heavier-inflammatory-burden-than-kidneys-from-standard-criteria-donors
#11
Camila M Mazeti-Felicio, Heloisa C Caldas, Ida M M Fernandes-Charpiot, Camila Z Dezotti, Maria A S F Baptista, Mario Abbud-Filho
BACKGROUND: Donors after brain death develop a systemic proinflammatory state that may predispose the kidneys to injury after transplantation. Because it is not known whether this inflammatory environment similarly affects the kidneys from expanded criteria donor (ECD) and standard criteria donors (SCD), we sought to evaluate differences in the gene expression of inflammatory cytokines in preimplantation biopsies (PIBx) from ECD and SCD kidneys. METHODS: Cytokines gene expression was measured in 80 PIBx (SCD, 52; ECD, 28) and associated with donor variables...
July 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28702031/alloantigen-induced-regulatory-t-cells-generated-in-presence-of-vitamin-c-display-enhanced-stability-of-foxp3-expression-and-promote-skin-allograft-acceptance
#12
Eirini Nikolouli, Matthias Hardtke-Wolenski, Martin Hapke, Michael Beckstette, Robert Geffers, Stefan Floess, Elmar Jaeckel, Jochen Huehn
Regulatory T cells (Tregs) are critical for the maintenance of immune homeostasis and self-tolerance and can be therapeutically used for prevention of unwanted immune responses such as allotransplant rejection. Tregs are characterized by expression of the transcription factor Foxp3, and recent work suggests that epigenetic imprinting of Foxp3 and other Treg-specific epigenetic signatures genes is crucial for the stabilization of both Foxp3 expression and immunosuppressive properties within Tregs. Lately, vitamin C was reported to enhance the activity of enzymes of the ten-eleven translocation family, thereby fostering the demethylation of Foxp3 and other Treg-specific epigenetic signatures genes in developing Tregs...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28701508/prdm1-regulates-thymic-epithelial-function-to-prevent-autoimmunity
#13
Natalie A Roberts, Brian D Adams, Nicholas I McCarthy, Reuben M Tooze, Sonia M Parnell, Graham Anderson, Susan M Kaech, Valerie Horsley
Autoimmunity is largely prevented by medullary thymic epithelial cells (TECs) through their expression and presentation of tissue-specific Ags to developing thymocytes, resulting in deletion of self-reactive T cells and supporting regulatory T cell development. The transcription factor Prdm1 has been implicated in autoimmune diseases in humans through genome-wide association studies and in mice using cell type-specific deletion of Prdm1 in T and dendritic cells. In this article, we demonstrate that Prdm1 functions in TECs to prevent autoimmunity in mice...
August 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28690612/protection-of-mice-from-acute-graft-versus-host-disease-requires-cd28-co-stimulation-on-donor-cd4-foxp3-regulatory-t-cells
#14
Anna Uri, Sandra Werner, Fred Lühder, Thomas Hünig, Thomas Kerkau, Niklas Beyersdorf
Acute graft-versus-host disease (aGvHD) is a major cause of morbidity and mortality after allogeneic hematopoietic stem cell plus T cell transplantation (allo-HSCT). In this study, we investigated the requirement for CD28 co-stimulation of donor CD4(+) conventional (CD4(+)CD25(-)Foxp3(-), Tconv) and regulatory (CD4(+)CD25(+)Foxp3(+), Treg) T cells in aGvHD using tamoxifen-inducible CD28 knockout (iCD28KO) or wild-type (wt) littermates as donors of CD4(+) Tconv and Treg. In the highly inflammatory C57BL/6 into BALB/c allo-HSCT transplantation model, CD28 depletion on donor CD4(+) Tconv reduced clinical signs of aGvHD, but did not significantly prolong survival of the recipient mice...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28654060/functional-characterization-of-regulatory-macrophages-that-inhibit-graft-reactive-immunity
#15
Jordi Ochando, Patricia Conde
Macrophage accumulation in transplanted organs has long been recognized as a feature of allograft rejection(1). Immunogenic monocytes infiltrate the allograft early after transplantation, mount a graft reactive response against the transplanted organ, and initiate organ rejection(2). Recent data suggest that suppressive macrophages facilitate successful long-term transplantation(3) and are required for the induction of transplantation tolerance(4). This suggests a multidimensional concept of macrophage ontogeny, activation, and function, which demands a new roadmap for the isolation and analysis of macrophage function(5)...
June 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28652007/cytokines-affecting-cd4-t-regulatory-cells-in-transplant-tolerance-iii-interleukin-5-il-5-promotes-survival-of-alloantigen-specific-cd4-t-regulatory-cells
#16
Bruce M Hall, Karren M Plain, Giang T Tran, Nirupama D Verma, Catherine M Robinson, Masaru Nomura, Rochelle Boyd, Suzanne J Hodgkinson
CD4(+)T cells mediate antigen-specific allograft tolerance, but die in culture without activated lymphocyte derived cytokines. Supplementation of the media with cytokine rich supernatant, from ConA activated spleen cells, preserves the capacity of tolerant cells to transfer tolerance and suppress rejection. rIL-2 or rIL-4 alone are insufficient to maintain these cells, however. We observed that activation of naïve CD4(+)CD25(+)FOXP3(+)Treg with alloantigen and the Th2 cytokine rIL-4 induces them to express interleukin-5 specific receptor alpha (IL-5Rα) suggesting that IL-5, a Th2 cytokine that is produced later in the immune response may promote tolerance mediating Treg...
June 23, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28647182/preoperative-application-of-combination-of-portal-venous-injection-of-donor-spleen-cells-and-intraperitoneal-injection-of-rapamycin-prolongs-the-survival-of-cardiac-allografts-in-mice
#17
Wen-Lin Gong, Chuang Sha, Gang Du, Zhong-Gui Shan, Zhong-Quan Qi, Su-Fang Zhou, Nuo Yang, Yong-Xiang Zhao
OBJECTIVE: To investigate the effects of preoperative portal venous injection of donor spleen cells (PVIDSC) and intraperitoneal injection of rapamycin in the acute rejection of cardiac allograft in mice and the underlying mechanisms. METHODS: Homogenous female B6 mice and BALB/c mice were used as recipients and donors of heart transplantation. These mice were randomly divided into different groups and received PVIDSC alone, rapamycin alone, or PVIDSC and rapamycin combined therapy...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28643491/association-of-foxp3-polymorphism-with-allograft-outcome-in-kidney-transplantation
#18
Hyewon Park, Nuri Lee, Ji Won In, Eun Youn Roh, Kyoung Un Park, Sue Shin, Jaeseok Yang, Eun Young Song
BACKGROUND: Forkhead box P3 (Foxp3) is the most reliable marker for regulatory T cells, which play an important role in maintaining renal allograft tolerance. Recently, Foxp3 polymorphisms have been reported to be associated with graft outcome in kidney transplantation. We analyzed the association of Foxp3 polymorphisms with renal allograft outcome. METHODS: Foxp3 polymorphisms (rs3761548 A/C, rs2280883 C/T, rs5902434 del/ATT, and rs2232365 A/G) were tested by PCR with sequence-specific primers (PCR-SSP) in 231 adult kidney transplantation recipients from 1996-2004 at Seoul National University Hospital...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28638744/azacytidine-prevents-experimental-xenogeneic-graft-versus-host-disease-without-abrogating-graft-versus-leukemia-effects
#19
Grégory Ehx, Gilles Fransolet, Laurence de Leval, Stéphanie D'Hondt, Sophie Lucas, Muriel Hannon, Loïc Delens, Sophie Dubois, Pierre Drion, Yves Beguin, Stéphanie Humblet-Baron, Frédéric Baron
The demethylating agent 5-azacytidine (AZA) has proven its efficacy in the treatment of myelodysplastic syndrome and acute myeloid leukemia. In addition, AZA can demethylate FOXP3 intron 1 (FOXP3i1) leading to the generation of regulatory T cells (Treg). Here, we investigated the impact of AZA on xenogeneic graft-vs.-host disease (xGVHD) and graft-vs.-leukemia effects in a humanized murine model of transplantation (human PBMCs-infused NSG mice), and described the impact of the drug on human T cells in vivo...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28638110/a-novel-and-effective-method-to-generate-human-porcine-specific-regulatory-t-cells-with-high-expression-of-il-10-tgf-%C3%AE-1-and-il-35
#20
Mingqian Li, Judith Eckl, Christiane Geiger, Dolores J Schendel, Heike Pohla
Organ transplantation remains the most effective treatment for patients with late stage organ failure. Transgenic pigs provide an alternative organ donor source to the limited availability of human organs. However, cellular rejection still remains to be the obstacle for xenotransplantation. Superior to other methods, antigen-specific regulatory T cells (Treg) alleviate cellular rejection with fewer side effects. Here we demonstrate the use of a fast method to provide tolerogenic dendritic cells (tolDC) that can be used to generate effective porcine-specific Treg cells (PSTreg)...
June 21, 2017: Scientific Reports
keyword
keyword
107752
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"