Enrichment of Foxp3+ Tregs and reduction of TH17 cells in human early pregnancy decidua indicate immunosuppressive T cell dominance

2009 ◽  
Vol 81 (2) ◽  
pp. 147
Author(s):  
J. Mjösberg ◽  
M.C. Jenmalm ◽  
G. Berg ◽  
J. Ernerudh
Keyword(s):  
T Cell ◽  
Early Pregnancy ◽  
Th17 Cells

Evidence for Associations Between Th1/Th17 “Hybrid” Phenotype and Altered Lipometabolism in Very Severe Graves Orbitopathy

2020 ◽  
Vol 105 (6) ◽  
pp. 1851-1867 ◽  
Author(s):  
Sijie Fang ◽  
Shuo Zhang ◽  
Yazhuo Huang ◽  
Yu Wu ◽  
Yi Lu ◽  
...  
Keyword(s):  
T Cell ◽  
Th17 Cell ◽  
Th17 Cells ◽  
T Cell Subsets ◽  
Th1 Cell ◽  
Effector T Cell ◽  
Cell Lineages ◽  
Graves Orbitopathy ◽  
Ifn Γ

Abstract Purpose The purpose of this article is to investigate the characteristics of Th1-cell and Th17-cell lineages for very severe Graves orbitopathy (GO) development. Methods Flow cytometry was performed with blood samples from GO and Graves disease (GD) patients and healthy controls, to explore effector T-cell phenotypes. Lipidomics was conducted with serum from very severe GO patients before and after glucocorticoid (GC) therapy. Immunohistochemistry and Western blotting were used to examine orbital-infiltrating Th17 cells or in vitro models of Th17 polarization. Results In GD, Th1 cells predominated in peripheral effector T-cell subsets, whereas in GO, Th17-cell lineage predominated. In moderate-to-severe GO, Th17.1 cells expressed retinoic acid receptor-related orphan receptor-γt (RORγt) independently and produced interleukin-17A (IL-17A), whereas in very severe GO, Th17.1 cells co-expressed RORγt and Tbet and produced interferon-γ (IFN-γ). Increased IFN-γ–producing Th17.1 cells positively correlated with GO activity and were associated with the development of very severe GO. Additionally, GC therapy inhibited both Th1-cell and Th17-cell lineages and modulated a lipid panel consisting of 79 serum metabolites. However, in GC-resistant, very severe GO, IFN-γ–producing Th17.1 cells remained at a high level, correlating with increased serum triglycerides. Further, retro-orbital tissues from GC-resistant, very severe GO were shown to be infiltrated by CXCR3+ Th17 cells expressing Tbet and STAT4 and rich in triglycerides that promoted Th1 phenotype in Th17 cells in vitro. Conclusions Our findings address the importance of Th17.1 cells in GO pathogenesis, possibly promoting our understanding of the association between Th17-cell plasticity and disease severity of GO.

scholarly journals Eomesodermin regulate decidual CD4+T cell function during human early pregnancy

2021 ◽  
pp. 103290
Author(s):  
Lanting Chen ◽  
Mengdie Li ◽  
Fengrun Sun ◽  
Jinfeng Qian ◽  
Meirong Du ◽  
...  
Keyword(s):  
T Cell ◽  
Early Pregnancy ◽  
Cell Function ◽  
Cd4 T Cell ◽  
T Cell Function

Abstract MP50: Time Restricted Feeding Reduces Interleukin 17a Production Associated With Western Diets

Hypertension ◽  
2021 ◽  
Vol 78 (Suppl_1) ◽  
Author(s):  
Gwendolyn K Davis ◽  
Daniel Fehrenbach ◽  
Charles D Smart ◽  
Claudia Edell ◽  
Jennifer Pollock ◽  
...  
Keyword(s):  
T Cell ◽  
Circadian Rhythms ◽  
Th17 Cell ◽  
Th17 Cells ◽  
Fold Increase ◽  
Organ Damage ◽  
High Salt ◽  
Restricted Feeding ◽  
High Fat ◽  
Interleukin 17A

Circadian rhythms govern our daily physiological processes. However, disruption of circadian rhythms, as can occur with ad libitum Western diets, disrupt these processes leading to cardiometabolic diseases. Our lab and others have shown that Th17 cells, which produce interleukin 17A (IL-17A), are implicated in the development of cardiovascular and renal end-organ damage associated with high fat and/or high salt diets. Th17 cell differentiation and trafficking is regulated by the circadian clock and influenced by light-dark cycles. However, whether feeding-fasting rhythms influence Th17 cell responses is poorly understood. We tested the hypothesis that limiting food intake to the 12-hr active period (time-restricted feeding, TRF) mitigates high fat and high salt (HF/HS) diet induced T cell IL-17A production and target organ damage. Beginning at 8 weeks of age, male C57Bl/6J mice were placed on either a normal chow/normal salt (NC/NS) or a HF/HS diet for 20 weeks, with TRF intervention occurring during the last two weeks in the HF/HS + TRF group. Body weight was similarly significantly increased in the HF/HS and HF/HS + TRF groups in comparison to the NC/NS group. Th17 cells were significantly increased (2.6-fold increase, p = 0.02) in the Peyer’s patches (lymphoid aggregates found in the small intestines) of mice on HF/HS diet in comparison to those on NC/NS. Importantly, TRF abolished this increase. Renal CD4 + T cell IL-17A production, as measured by flow cytometry, was increased by HF/HS diet compared to NC/NS (3-fold increase, p = 0.02). Similarly, TRF abolished this increase. This study highlights how Western diets exacerbate intestinal and renal IL-17A production and the potential beneficial impact of a behavioral intervention, TRF, to mitigate the Th17 mediated inflammation associated with diet-induced obesity.

scholarly journals The Immuno-Modulatory Activities of Pentaherbs Formula on Ovalbumin-Induced Allergic Rhinitis Mice via the Activation of Th1 and Treg Cells and Inhibition of Th2 and Th17 Cells

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 239
Author(s):  
Peiting Li ◽  
Miranda Sin-Man Tsang ◽  
Lea Ling-Yu Kan ◽  
Tianheng Hou ◽  
Sharon Sze-Man Hon ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
T Cell ◽  
Inflammatory Mediators ◽  
Th17 Cells ◽  
Lavage Fluid ◽  
Nasal Lavage ◽  
Nasal Epithelium ◽  
Tnf Α ◽  
Nasal Lavage Fluid ◽  
Sinonasal Mucosa

Allergic rhinitis (AR) is a highly prevalent allergic disease induced by immunoglobulin (Ig) E-mediated hypersensitivity reaction at the nasal epithelium against inhaled allergens. Previous studies have demonstrated that Pentaherbs formula (PHF), a modified herbal formula comprising five herbal medicines (Flos Lonicerae, Herba Menthae, Cortex Phellodendri, Cortex Moutan and Rhizoma Atractylodis), could suppress various immune effector cells to exert anti-inflammatory and anti-allergic effects in allergic asthma and atopic dermatitis. The present study aimed to further determine the anti-inflammatory activities of PHF in an ovalbumin (OVA)-induced AR BALB/c mouse model. Nasal symptoms such as sneezing and nose rubbing were recorded and the serum total IgE and OVA-specific IgG1, as well as interleukin (IL)-4, IL-5, IL-10, IL-13, chemokines CXCL9 CXCL10, and tumor necrosis factor (TNF)-α concentrations in nasal lavage fluid (NALF) were measured during different treatments. Effects of PHF on the expression of inflammatory mediators in the sinonasal mucosa were quantified using real-time QPCR. PHF was found to suppress allergic symptoms, infiltration of inflammatory cells, and hyperplasia of goblet cells in the nasal epithelium of the OVA-induced AR mice. PHF could reduce OVA-specific IgG1 level in serum, and TNF-α and IL-10 in nasal lavage fluid (NALF), significantly up-regulate the splenic regulatory T (Treg) cell level, increase the Type 1 helper T cell (Th1)/Type 2 helper T cell (Th2) ratio, and reduce the Th17 cells (all p < 0.05). PHF could also alleviate in situ inflammation in sinonasal mucosa of OVA-induced AR mice. In conclusion, oral treatment of PHF showed immuno-modulatory activities in the OVA-induced AR mice by regulating the splenic T cell population to suppress the nasal allergy symptoms and modulating inflammatory mediators, implicating that PHF could be a therapeutic strategy for allergic rhinitis.

scholarly journals Myelin-specific T helper 17 cells promote adult hippocampal neurogenesis through indirect mechanisms

F1000Research ◽  
2017 ◽  
Vol 3 ◽  
pp. 169 ◽  
Author(s):  
Johannes Niebling ◽  
Annette E. Rünker ◽  
Sonja Schallenberg ◽  
Karsten Kretschmer ◽  
Gerd Kempermann
Keyword(s):  
T Cell ◽  
Th17 Cell ◽  
Th17 Cells ◽  
Precursor Cells ◽  
Hippocampal Neurogenesis ◽  
Adult Hippocampal Neurogenesis ◽  
Lymphoid Tissues ◽  
Base Line ◽  
T Helper ◽  
Th Cell

CD4+ T cells provide a neuro-immunological link in the regulation of adult hippocampal neurogenesis, but the exact mechanisms underlying enhanced neural precursor cell proliferation and the relative contribution of different T helper (Th) cell subsets have remained unclear. Here, we explored the pro-proliferative potential of interleukin 17-producing T helper (Th17) cells, a developmentally and functionally distinct Th cell subset that is a key mediator of autoimmune neurodegeneration. We found that base-line proliferation of hippocampal precursor cells in a T cell-deficient mouse model of impaired hippocampal neurogenesis can be restored upon adoptive transfer with homogeneous Th17 populations enriched for myelin-reactive T cell receptors (TCR). In these experiments, enhanced proliferation was independent of direct interactions of infiltrating Th17 cells with precursor cells or neighboring cells in the hippocampal neurogenic niche. Complementary studies in immunocompetent mice identified several receptors for Th17 cell-derived cytokines with mRNA expression in hippocampal precursor cells and dentate gyrus tissue, suggesting that Th17 cell activity in peripheral lymphoid tissues might promote hippocampal neurogenesis through secreted cytokines.

scholarly journals T-cell vaccination leads to suppression of intrapancreatic Th17 cells through Stat3-mediated RORγt inhibition in autoimmune diabetes

Cell Research ◽  
2011 ◽  
Vol 21 (9) ◽  
pp. 1358-1369 ◽  
Author(s):  
Min Wang ◽  
Liu Yang ◽  
Xiaoyan Sheng ◽  
Weilei Chen ◽  
Haiqing Tang ◽  
...  
Keyword(s):  
T Cell ◽  
Th17 Cells ◽  
Autoimmune Diabetes ◽  
T Cell Vaccination

Development of hepatosplenic γδ T-cell lymphoma with pancytopenia during early pregnancy: a case report and review of the literature

2004 ◽  
Vol 73 (5) ◽  
pp. 367-371 ◽  
Author(s):  
Nozomi Niitsu ◽  
Mika Kohri ◽  
Tomiteru Togano ◽  
Hirokazu Nakamine ◽  
Shigeo Nakamura ◽  
...  
Keyword(s):  
Case Report ◽  
T Cell ◽  
Early Pregnancy ◽  
Cell Lymphoma ◽  
T Cell Lymphoma ◽  
Γδ T Cell ◽  
Review Of The Literature

scholarly journals Modulation of PKM activity affects the differentiation of TH17 cells

2020 ◽  
Vol 13 (655) ◽  
pp. eaay9217
Author(s):  
Scott M. Seki ◽  
Kacper Posyniak ◽  
Rebecca McCloud ◽  
Dorian A. Rosen ◽  
Anthony Fernández-Castañeda ◽  
...  
Keyword(s):  
T Cell ◽  
Small Molecules ◽  
Th17 Cells ◽  
Cell Function ◽  
Therapeutic Potential ◽  
Interleukin 17 ◽  
Gm Csf ◽  
T Cell Function ◽  
The Brain ◽  
Tgf Β1

Small molecules that promote the metabolic activity of the pyruvate kinase isoform PKM2, such as TEPP-46 and DASA-58, limit tumorigenesis and inflammation. To understand how these compounds alter T cell function, we assessed their therapeutic activity in a mouse model of T cell–mediated autoimmunity that mimics multiple sclerosis (MS). TH17 cells are believed to orchestrate MS pathology, in part, through the production of two proinflammatory cytokines: interleukin-17 (IL-17) and GM-CSF. We found that both TEPP-46 and DASA-58 suppressed the development of IL-17–producing TH17 cells but increased the generation of those producing GM-CSF. This switch redirected disease pathology from the spinal cord to the brain. In addition, we found that activation of PKM2 interfered with TGF-β1 signaling, which is necessary for the development of TH17 and regulatory T cells. Collectively, our data clarify the therapeutic potential of PKM2 activators in MS-like disease and how these agents alter T cell function.

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