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https://www.readbyqxmd.com/read/28446747/a-systems-pharmacology-approach-to-determine-active-compounds-and-action-mechanisms-of-xipayi-kuijie-an-enema-for-treatment-of-ulcerative-colitis
#1
Wei Yu, Zhihong Li, Fei Long, Wen Chen, Yurong Geng, Zhiyong Xie, Meicun Yao, Bo Han, Teigang Liu
Xipayi Kui Jie'an (KJA), a type of traditional Uygur medicine (TUM), has shown promising therapeutic effects in Ulcerative colitis (UC). Owing to the complexity of TUM, the pharmacological mechanism of KJA remains vague. Therefore, the identification of complex molecular mechanisms is a major challenge and a new method is urgently needed to address this problem. In this study, we established a feasible pharmacological model based on systems pharmacology to identify potential compounds and targets. We also applied compound-target and target-diseases network analysis to evaluate the action mechanisms...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28445259/the-role-of-stat3-and-ahr-in-the-differentiation-of-cd4-t-cells-into-th17-and-treg-cells
#2
Xingxing Liu, Hui Hu, Heng Fan, Dongmei Zuo, Zhexing Shou, Yi Liao, Zhen Nan, Qing Tang
BACKGROUND: This study aimed to investigate the role of aryl hydrocarbon receptor (AhR) and STAT3 gene during the differentiation of cluster of differentiation (CD)4 T cells into T helper (Th)17 and T regulatory (Treg) cells. METHODS: First, CD4 T cells were isolated from the spleen of BALB/c mice. Then, stable CD4 T cells expressing STAT3 shRNA were constructed. CD4 T cells were assigned to one of the following treatments: Th17 group: antibodies against CD3 and CD28, 2...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28442414/inhibition-of-allogeneic-cytotoxic-t-cell-cd8-proliferation-via-polymer-induced-treg-cd4-cells
#3
Ning Kang, Wendy M Toyofuku, Xining Yang, Mark D Scott
T cell-mediated immune rejection remains a barrier to successful transplantation. Polymer-based bioengineering of cells may provide an effective means of preventing allorecognition and the proliferation of cytotoxic (CD8(+)) T lymphocytes (CTL). Using MHC-disparate murine splenocytes modified with succinimidyl valerate activated methoxypoly(ethylene glycol) [SVA-mPEG] polymers, the effects of leukocyte immunocamouflage on CD8(+) and CD4(+) alloproliferation and T regulatory (Treg) cell induction were assessed in a mixed lymphocyte reaction (MLR) model...
April 22, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28440588/endometrial-immune-markers-are-potential-predictors-of-normal-fertility-and-pregnancy-after-in-vitro-fertilization
#4
Louise Kofod, Anette Lindhard, Michael Bzorek, Jens Ole Eriksen, Lise Grupe Larsen, Thomas Vauvert F Hviid
PROBLEM: Elucidating immune mechanisms in the endometrium, which lead to the success of implantation and pregnancy, is important in reproductive medicine. Studies of immune cell abundance have shown conflicting results, and the expression and importance of HLA class Ib proteins in pre-implantation endometrium have not yet been investigated. METHOD OF STUDY: The study population consisted of four subgroups: a hydrosalpinx, a salpingectomy, an unexplained infertility, and a fertile control group...
April 25, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28440447/anti%C3%A2-inflammatory-effects-of-oxymatrine-on-rheumatoid-arthritis-in-rats-via-regulating-the-imbalance-between-treg-and-th17-cells
#5
Ailing Ma, Yongya Yang, Qiuyang Wang, Yin Wang, Jing Wen, Yanli Zhang
Oxymatrine (OMT), a monosomic alkaloid extracted from the Chinese herb, Sophora flavescens Ait, has long been used as a traditional Chinese medicine for the treatment of inflammatory diseases. The aim of the present study was to investigate the potential anti‑inflammatory effect of OMT, and its modulation on imbalance between regulatory T (Treg) cells and T helper (Th) 17 cells in rats with collagen‑induced arthritis (CIA). Sprague‑Dawley rats were immunized with type II collagen and following a second collagen immunization, the rats were treated with OMT or dexamethasone (DXM) intraperitoneally once a day for 43 days...
April 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440200/effect-of-halofuginone-on-the-pathogenesis-of-autoimmune-thyroid-disease-in-different-mice-models
#6
Xin Hou, Jin Zhou, Rong Yang, Shanshan Liu, Mei Bi, Tong Liu, Chenling Fan, Haixia Guan, Yushu Li, Zhongyan Shan, Weiping Teng
OBJECTIVE: Our objectives were to investigate the therapeutic effect of halofuginone (HF) in the treatment of autoimmune thyroid diseases (AITDs) and explore its underlying mechanism of action. METHODS: The Graves' disease (GD) model was generated by immunizing female BALB/c mice with adenovirus expressing the TSH receptor A subunit (Ad-TSHR289). The Ad-TSHRA+HF and Ad-TSHRA+DMSO groups were injected intraperitoneally with HF or the vehicle control (DMSO), respectively...
April 23, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28437737/changes-in-regulatory-t-cells-in-patients-with-ovarian-cancer-undergoing-surgery-preliminary-results
#7
Meng Wu, Xian Chen, Jianfang Lou, Shuping Zhang, Xiaojie Zhang, Lei Huang, Ruihong Sun, Peijun Huang, Shiyang Pan, Fang Wang
Regulatory T cells (Treg) suppress immune responses in patients with cancer. Surgery is the most effective therapeutic strategy for ovarian cancer (OC). However, the interplay between the Treg population and surgical resection remains unclear. 61 patients with OC who received no prior treatment were enrolled in the study. Treg percentages were characterized from peripheral blood mononuclear cells. We investigated CD4(+)CD25(+), CD4(+)CD25(+)Foxp3(+), CD8(+)CD28(-), and CD8(+)Foxp3(+) Tregs in OC patients and their postoperative changes using flow cytometry...
April 21, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28437578/klrg1-impairs-treg-competitive-fitness-in-the-gut
#8
Holger Meinicke, Anna Bremser, Maria Brack, Klaudia Schrenk, Hanspeter Pircher, Ana Izcue
Immune homeostasis requires the tight, tissue-specific control of the different CD4(+) Foxp3(+) regulatory T cells (Treg) populations. The cadherin-binding inhibitory receptor KLRG1 is expressed by a subpopulation of Treg with GATA3(+) effector phenotype. Although such Treg are important for the immune balance, especially in the gut, the role of KLRG1 in Treg has not been assessed. Using KLRG1 KO mice, we found that KLRG1 deficiency does not affect Treg frequencies in spleen, mesenteric lymph nodes or intestine, or frequencies of GATA3(+) Treg in the gut...
April 24, 2017: Immunology
https://www.readbyqxmd.com/read/28437001/tumor-associated-changes-in-intestinal-epithelial-cells-cause-local-accumulation-of-klrg1-gata3-regulatory-t-cells-in-mice
#9
Holger Meinicke, Anna Bremser, Maria Brack, Paulina Akeus, Claire Pearson, Samuel Bullers, Katrin Hoffmeyer, Marc P Stemmler, Marianne Quiding-Järbrink, Ana Izcue
CD4(+) Foxp3(+) regulatory T cells (Treg) include differentiated populations of effector Treg characterized by the expression of specific transcription factors. Tumors, including intestinal malignancies, often present with local accumulation of Treg that can prevent tumor clearance, but how tumor progression leads to Treg accumulation is incompletely understood. Here using genetically modified mouse models we show that ablation of E-cadherin, a process associated with epithelial to mesenchymal transition (EMT) and tumor progression, promotes the accumulation of intestinal Treg by the specific accumulation of the KLRG1(+) GATA3(+) Treg subset...
April 24, 2017: Immunology
https://www.readbyqxmd.com/read/28436428/neuronal-ifn-beta-induced-pi3k-akt-foxa1-signalling-is-essential-for-generation-of-foxa1-treg-cells
#10
Yawei Liu, Andrea Marin, Patrick Ejlerskov, Louise Munk Rasmussen, Marco Prinz, Shohreh Issazadeh-Navikas
Neurons reprogramme encephalitogenic T cells (Tenc) to regulatory T cells (Tregs), either FoxP3(+)Tregs or FoxA1(+)Tregs. We reported previously that neuronal ability to generate FoxA1(+)Tregs was central to preventing neuroinflammation in experimental autoimmune encephalomyelitis (EAE). Mice lacking interferon (IFN)-β were defective in generating FoxA1(+)Tregs in the brain. Here we show that lack of neuronal IFNβ signalling is associated with the absence of programme death ligand-1 (PDL1), which prevents their ability to reprogramme Tenc cells to FoxA1(+)Tregs...
April 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28434981/protein-transport-inhibitors-downregulate-the-expression-of-lag-3-on-regulatory-t-cells
#11
Sara Anvari, Andrea Grimbergen, Carla M Davis, George Makedonas
Modern immunologic studies demand increasing complexity because of a need to improve our understanding of the relationship between a cell's phenotype and its function. Regulatory T cells have been defined by a narrow set of phenotypic markers, however their actual functional capacity has not been determined at the single-cell level. Although the lymphocyte activation gene 3 (LAG-3; CD223) is a key marker for the identification of exhausted T cells, it may be useful also in resolving Treg subpopulations by indicating distinct functional breadths...
April 20, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28434942/ipsc-derived-regulatory-dendritic-cells-inhibit-allograft-rejection-by%C3%A2-generating-alloantigen-specific-regulatory-t-cells
#12
Songjie Cai, Jiangang Hou, Masayuki Fujino, Qi Zhang, Naotsugu Ichimaru, Shiro Takahara, Ryoko Araki, Lina Lu, Ji-Mei Chen, Jian Zhuang, Ping Zhu, Xiao-Kang Li
Regulatory dendritic cell (DCregs)-based immunotherapy is a potential therapeutic tool for transplant rejection. We generated DCregs from murine induced pluripotent stem cells (iPSCs), which could remain in a "stable immature stage" even under strong stimulation. Harnessing this characteristic, we hypothesized that iPS-DCregs worked as a negative vaccine to generate regulatory T cells (Tregs), and induced donor-specific allograft acceptance. We immunized naive CBA (H-2K(k)) mice with B6 (H-2K(b)) iPS-DCregs and found that Tregs (CD4(+)CD25(+)FOXP3(+)) significantly increased in CBA splenocytes...
April 18, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28433429/immunological-function-of-langerhans-cells-in-hiv-infection
#13
Takamitsu Matsuzawa, Youichi Ogawa, Kohji Moriishi, Shinji Shimada, Tatsuyoshi Kawamura
BACKGROUND: Langerhans cells (LCs) are one of the initial target cells for HIV following sexual exposure and they are productively infected by HIV. HIV-infected LCs migrate to the draining lymph nodes (dLNs) and transmit the virus to CD4(+) T cells, leading to the dissemination of HIV. In contrast with the role of LCs in initial HIV acquisition, little is known about the modulation of immune responses by HIV-infected LCs. OBJECTIVE: We aimed to elucidate the induction of HIV-specific CD8(+) T cells and regulatory T cells (Tregs), both of which play important roles in regulating the progression of HIV infection...
April 9, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28430349/prognostic-significance-of-infiltrating-immune-cell-subtypes-in-invasive-ductal-carcinoma-of-the-breast
#14
Yangmei Xu, Suzhen Lan, Qiuhong Zheng
PURPOSE: To explore the correlation between tumor-infiltrating immune cell subsets and breast cancer prognosis. MATERIALS AND METHODS: Specimens of 102 patients with invasive ductal carcinoma of the breast were analyzed for immune-related markers (CD8, CD20, FOXP3 and CD68). The number of positive cells in the 3 most highly stained intratumoral stroma areas of the primary tumor was counted. The mean number was calculated and used to divide patients into 2 groups for each marker (CD8-high/CD8-low, CD20-high/CD20-low, FOXP3-high/FOXP3-low, and CD68-high/CD68-low)...
April 20, 2017: Tumori
https://www.readbyqxmd.com/read/28429331/the-correlation-of-cd19%C3%A2-%C3%A2-cd24%C3%A2-%C3%A2-cd38%C3%A2-%C3%A2-b-cells-and-other-clinicopathological-variables-with-the-proportion-of-circulating-tregs-in-breast-cancer-patients
#15
Mohammad Kazzem Gheybi, Shokrollah Farrokhi, Mohammad Reza Ravanbod, Afshin Ostovar, Valiollah Mehrzad, Pardis Nematollahi
BACKGROUND: T regulatory cells (Tregs) are known to negatively control immune response. The frequency of these cells was inversely correlated with clinical outcomes of breast cancer. CD19(+)CD24(hi)CD38(hi) cells also play a critical role in inflammation and autoimmune disease. However, their function in tumor immune response is less studied. In this study we aimed to determine the role of CD19(+)CD24(hi)CD38(hi) cells and some other clinicopathological variables in increasing the proportion of Tregs in breast cancer patients...
April 20, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28428880/long-term-complete-remission-with-ipilimumab-in-metastatic-castrate-resistant-prostate-cancer-case-report-of-two-patients
#16
Luc Cabel, Elika Loir, Gwenaelle Gravis, Pernelle Lavaud, Christophe Massard, Laurence Albiges, Giulia Baciarello, Yohann Loriot, Karim Fizazi
BACKGROUND: Prostate cancer is one of the most common cancers in men and the fourth leading cause of cancer mortality worldwide. Although major progress has been achieved in the last years for patients with metastatic castrate-resistant prostate cancer (mCRPC), thanks to next-generation androgen receptor axis targeted drugs, taxanes, and bone-targeted agents, immunotherapy has not been widely approved and used for the treatment of prostate cancer. Two large studies with ipilimumab, an anti-CTLA-4 (cytotoxic T-lymphocyte antigen 4) antibody reported improved progression-free survival, but not statistically improved overall survival at the primary analysis (CA184 043 and CA184 095)...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28423200/cd80cd86-deficiency-disrupts-regulatory-cd4-foxp3-t-cell-homeostasis-and-induces-autoimmune-like-alopecia
#17
Ji-Hyun Bae, Woo-Sung Hwang, Yoo-Jin Jang, Yoon-Hoo Lee, Da-Eun Jang, Jung-Sik Kim, Su-Cheong Yeom
Alopecia areata (AA) is an autoimmune disease that results in spot baldness in humans. Adequate animal models for AA are currently lacking. The objective of this study was to elucidate the mechanism of autoimmune-like alopecia (ALA) in C57BL/6.CD80CD86-deficient (B6.CD80CD86(-/-) ) mice. Incidence and severity of alopecia were analyzed in 58 B6.CD80CD86(-/-) mice by using histological examination, flow cytometry, multiplex enzyme-linked immunosorbent assay, quantitative RT-PCR, and CD25 inhibition test. Both male and female B6...
April 19, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28420440/immune-response-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes-mellitus
#18
Lei Ye, Li Li, Bing Wan, Minglan Yang, Jie Hong, Weiqiong Gu, Weiqing Wang, Guang Ning
BACKGROUND: This study explored the details of the immune response after autologous hematopoietic stem cell transplantation (AHSCT) treatment in type 1 diabetes mellitus. METHODS: Peripheral blood mononuclear cells (PBMCs) from 18 patients with type 1 diabetes mellitus were taken at baseline and 12 months after AHSCT or insulin-only therapy. The lymphocyte proliferation, mRNA expression and secretion of pro-inflammatory and anti-inflammatory cytokines belonging to T-helper type 1 (Th1), T-helper type 17 (Th17) and regulatory T (Treg) cells in PBMC culture supernatants were assessed...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28418014/the-relationship-between-allergic-status-and-adenotonsillar-regrowth-a-retrospective-research-on-children-after-adenotonsillectomy
#19
Zirong Huo, Jun Shi, Yilai Shu, Mingliang Xiang, Jingrong Lu, Hao Wu
Adenotonsillar regrowth in children after adenotonsillectomy (T&A) for obstructive sleep apnea (OSA) is often seen in clinical treatment, however, the relationship between allergic disease and adenotonsillar regrowth remains unclear. In this retrospective study, children were assigned to either the recurrence or control group, and subdivided by age at operation. Among children over 36 months, those in the recurrence group had more allergic disease and higher IgE, IL-4, and IL-5 levels than the same-aged children in control group...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28416440/inhibition-of-the-pi3k-akt-mtor-signaling-pathway-in-t-lymphocytes-in-patients-with-active-tuberculosis
#20
XueXuan Zhang, TengYi Huang, Ying Wu, WenGuang Peng, HanBin Xie, MeiChen Pan, HuanBin Zhou, BoZhi Cai, YingE Wu
OBJECTIVES: To investigate PI3K-Akt-mTOR signaling pathway changes and the proliferation of FoxP3(+)Treg cells in patients with active tuberculosis. METHODS: We isolated PBMCs and CD4(+)CD25(+)FoxP3(+) Treg cells from peripheral blood collected from patients with active tuberculosis and healthy controls. We compared the proportion and MFI of PI3K-Akt-mTOR pathway components and PTEN by flow cytometry using specific cell-surface and intracellular markers. Moreover, we detected the specific secretory proteins ESAT-6 and Ag85B, cytokines IL-10, TGF-β1 and IL-35 in serum by ELISA...
April 14, 2017: International Journal of Infectious Diseases: IJID
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