scholarly journals Imbalance of Th17/Treg in Different Subtypes of Autoimmune Thyroid Diseases

2016 ◽  
Vol 40 (1-2) ◽  
pp. 245-252 ◽  
Author(s):  
Cui Li ◽  
Jianghong Yuan ◽  
Yuan-feng Zhu ◽  
Xiang-ju Yang ◽  
Qiong Wang ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Mononuclear Cells ◽  
Treg Cells ◽  
Thyroid Diseases ◽  
Control Group ◽  
Clinical Activity ◽  
Autoimmune Thyroid Diseases ◽  
Foxp3 Mrna ◽  
Autoimmune Thyroid ◽  
Th17 Lymphocytes

Aims: To clarify the imbalance of Th17/Treg in different subtypes of autoimmune thyroid diseases (AITDs) including Graves' disease(GD), Hashimoto's thyroiditis(HT) and Graves' ophthalmopathy (GO). Methods: 47 patients with AITD (including 16 GD, 15 HT, and 16 GO) and 12 healthy controls were enrolled in this study. The percentages of Th17 and Treg cells, the ratio of Th17/Treg, as well as their related transcription factors RORγt and Foxp3 mRNA in peripheral blood mononuclear cells (PBMCs) were measured by flow cytometry and real-time quantitative PCR Results: Compared with those in control group, the percentage of CD4+IL-17+T cell(Th17) and the mRNA expression of its transcription factor RORγt were higher in PBMCs of AITDs (P<0.05), particularly in HT subgroup (P<0.01). The percentage of CD4+Foxp3+T (Treg) cells and its transcription factor Foxp3 mRNA were significantly decreased in PBMCs of GD (P<0.05). In addition, the ratio of Th17/Treg was elevated in AITD group and GO subgroup (P<0.01). In GO subgroup, the patients with clinical activity score (CAS) above 4.5 had higher percentages of Th17 than those with CAS ranging from 3 to 4.5 (P<0.05). Conclusion: Increased Th17 lymphocytes may play a more important role in the pathogenesis of HT and GO while decreased Treg may be greatly involved in GD.

scholarly journals Immunological Mechanisms of Autoimmune Thyroid Diseases: A Shift in The Traditional TH1/TH2 Paradigm

2019 ◽  
Vol 73 (2) ◽  
pp. 67-77
Author(s):  
Tatjana Zaķe ◽  
Sandra Skuja ◽  
Aivars Lejnieks ◽  
Valērija Groma ◽  
Ilze Konrāde
Keyword(s):  
Thyroid Autoimmunity ◽  
Treg Cells ◽  
Thyroid Diseases ◽  
Autoimmune Response ◽  
Autoimmune Thyroid Diseases ◽  
Autoimmune Thyroid ◽  
Th17 Lymphocytes ◽  
Immunological Mechanisms ◽  
Thyroid Autoantigens ◽  
The Impact

Abstract Autoimmune thyroid diseases (AITD) mainly include Hashimoto’s thyroiditis (HT) and Graves’ disease (GD), which are characterised by the presence of circulating antibodies against various thyroid autoantigens and infiltration of the thyroid gland by autoreactive lymphocytes. Despite the significant advancement in the knowledge of AITD pathogenesis in the last decade, the specific immunological mechanisms responsible for development of the disease are not thoroughly understood. Classically, HT has long been considered as a T helper (Th)1-mediated disease, while a Th2-driven autoimmune response is dominant for GD development. However, this classification has changed due to the description of Th17 lymphocytes, which suggested participation of these cells in AITD, particularly HT pathogenesis. Moreover, a shift in the balance between Th17 and T regulatory (Treg) cells has been observed in thyroid autoimmunity. We have observed overexpression of IL-17, the prominent effector cytokine of Th17, within thyroid tissues from HT and GD patients in our studies. The present review will focus on recent data regarding the role of Treg and Th17 lymphocytes in AITD pathogenesis. In addition, the impact and proposed mechanisms of the predominant environmental factors triggering the autoimmune response to the thyroid will be discussed.

scholarly journals Polymorphisms of IKZF3 Gene and Autoimmune Thyroid Diseases: Associated with Graves’ Disease but Not with Hashimoto’s Thyroiditis

2018 ◽  
Vol 45 (5) ◽  
pp. 1787-1796 ◽  
Author(s):  
Ling Li ◽  
Xiaolian Ding ◽  
Xuan Wang ◽  
Qiuming Yao ◽  
Xiaoqing Shao ◽  
...  
Keyword(s):  
Hashimoto’S Thyroiditis ◽  
Zinc Finger Protein ◽  
Thyroid Diseases ◽  
Hashimoto's Thyroiditis ◽  
Control Group ◽  
Graves Disease ◽  
Autoimmune Thyroid Diseases ◽  
Autoimmune Thyroid ◽  
Significant Difference ◽  
Proliferation And Differentiation

Background/Aims: The IKZF3 gene encodes a zinc-finger protein that plays an important role in the proliferation and differentiation of B lymphocytes. Autoimmune thyroid diseases (AITDs), mainly include Graves’ disease (GD) and Hashimoto’s thyroiditis (HT), are probably caused by the aberrant proliferation of B cells. The objective of this study was to explore the association between IKZF3 polymorphisms and AITDs. Methods: We examined 915 AITD patients (604 GD and 311 HT) and 814 healthy controls. IKZF3 variants (rs2941522, rs907091, rs1453559, rs12150079 and rs2872507) were tested by PCR-ligase detection reaction. Results: It was manifested that that the minor alleles of the five loci increased susceptibility to GD (p<0.05 for rs2941522, and p<0.01 for rs907091, rs1453559, rs12150079 and rs2872507) but in HT patients, these loci showed no significant difference compared with controls. Similarly, the genotype distributions of GD patients manifested obvious differences in all these loci compared with the control group, whereas no statistical differences were observed between HT patients and controls. Furthermore, bioinformatics tools were used to analyze rs1453559, rs12150079 and rs907091. These variants were believed to be the transcription regulator. Conclusion: It is the first time we reported the association between the IKZF3 polymorphisms and GD, indicating that IKZF3 gene tends to bean important risk factor for the development of GD.

Analysis of diabetes-associated autoantibodies in children and adolescents with autoimmune thyroid diseases

2019 ◽  
Vol 32 (4) ◽  
pp. 355-361 ◽  
Author(s):  
Marta Rydzewska ◽  
Justyna Michalak ◽  
Anna Bossowska ◽  
Shu Chen ◽  
Sarah Black ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Study Groups ◽  
Thyroid Diseases ◽  
Control Group ◽  
Acid Decarboxylase ◽  
Autoimmune Thyroid Diseases ◽  
Autoimmune Thyroid ◽  
Glutamic Acid Decarboxylase Autoantibodies ◽  
Group 2

Abstract Background Zinc transporter 8 autoantibodies (ZnT8Abs) together with glutamic acid decarboxylase autoantibodies (GADAbs), insulinoma antigen 2 autoantibodies (IA-2Abs) and insulin autoantibodies (IAbs) are markers of type 1 diabetes mellitus (T1DM). We studied the prevalence of ZnT8Ab in children with autoimmune thyroid diseases (AITDs) to assess the association of AITDs and T1DM at the serological level. Methods The study groups consisted of 44 children with Graves’ disease (GD), 65 children with Hashimoto’s thyroiditis (HT), 199 children with T1DM with or without AITDs and 58 control children. ZnT8Ab, GADAb, IA-2Ab, IAb, 21-hydroxylase autoantibodies (21-OHAbs) and acetylcholine receptor autoantibodies (AChRAbs) were measured. Results ZnT8Abs were found in 4/44 (9.1%) patients with GD, and 4/44 (9.1%) patients with GD were positive for GADAb. Of the 65 HT patients, six (9.2%) were positive for ZnT8Ab, while four (6.2%) were positive for GADAb. In the T1DM group, 128/199 (64%) of the patients were positive for ZnT8Ab, 133/199 (67%) for GADAb and 109/199 (55%) for IA-2Ab. One GD patient and one HT patient were positive for all the four diabetes-associated autoantibodies. Two HT patients were positive for three diabetes autoantibodies. Two GD (4.5%) and five HT (7.7%) patients were positive for 21-OHAb only. None of the patients had AChRAb. In the control group, 2/58 (3.4%) were positive for GADAb and 2/58 (3.4%) were positive for ZnT8Ab. Conclusions Diabetes-associated autoantibodies including ZnT8Ab were found in children and adolescents with GD and HT.

scholarly journals Decreased Immunoglobulin G Core Fucosylation, A Player in Antibody-dependent Cell-mediated Cytotoxicity, is Associated with Autoimmune Thyroid Diseases

2020 ◽  
Vol 19 (5) ◽  
pp. 774-792 ◽  
Author(s):  
Tiphaine C. Martin ◽  
Mirna Šimurina ◽  
Marta Ząbczyńska ◽  
Marina Martinic Kavur ◽  
Magdalena Rydlewska ◽  
...  
Keyword(s):  
Peripheral Blood Mononuclear Cells ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Thyroid Diseases ◽  
Autoimmune Thyroid Diseases ◽  
Peripheral Blood Mononuclear ◽  
Autoimmune Thyroid ◽  
Blood Mononuclear Cells ◽  
Dependent Cell ◽  
Core Fucosylation

Autoimmune thyroid diseases (AITD) are the most common group of autoimmune diseases, associated with lymphocyte infiltration and the production of thyroid autoantibodies, like thyroid peroxidase antibodies (TPOAb), in the thyroid gland. Immunoglobulins and cell-surface receptors are glycoproteins with distinctive glycosylation patterns that play a structural role in maintaining and modulating their functions. We investigated associations of total circulating IgG and peripheral blood mononuclear cells glycosylation with AITD and the influence of genetic background in a case-control study with several independent cohorts and over 3,000 individuals in total. The study revealed an inverse association of IgG core fucosylation with TPOAb and AITD, as well as decreased peripheral blood mononuclear cells antennary α1,2 fucosylation in AITD, but no shared genetic variance between AITD and glycosylation. These data suggest that the decreased level of IgG core fucosylation is a risk factor for AITD that promotes antibody-dependent cell-mediated cytotoxicity previously associated with TPOAb levels.

scholarly journals Decreased IgG core fucosylation, a player in antibody-dependent cell-mediated cytotoxicity, is associated with autoimmune thyroid diseases

2018 ◽  
Author(s):  
Tiphaine C. Martin ◽  
Mirna Šimurina ◽  
Marta Ząbczyńska ◽  
Marina Martinić Kavur ◽  
Magdalena Rydlewska ◽  
...  
Keyword(s):  
Mononuclear Cells ◽  
Thyroid Diseases ◽  
Thyroid Peroxidase ◽  
Inverse Association ◽  
Autoimmune Thyroid Diseases ◽  
Peripheral Blood Mononuclear ◽  
Autoimmune Thyroid ◽  
Surface Receptors ◽  
Dependent Cell ◽  
Core Fucosylation

AbstractAutoimmune thyroid diseases (AITD) are the most common group of autoimmune diseases, associated with lymphocyte infiltration and the production of thyroid autoantibodies, like thyroid peroxidase antibodies (TPOAb), in the thyroid gland. Immunoglobulins (Igs) and cell-surface receptors are glycoproteins with distinctive glycosylation patterns that play a structural role in maintaining and modulating their functions. We investigated associations of total circulating IgG and peripheral blood mononuclear cells (PBMCs) glycosylation with AITD and the influence of genetic background. The study revealed an inverse association of IgG core fucosylation with TPOAb and PBMCs antennary α1,2 fucosylation with AITD, but no shared genetic variance between AITD and glycosylation. These data suggest that the decreased level of IgG core fucosylation is a risk factor for AITD that promotes antibody-dependent cell-mediated cytotoxicity (ADCC) associated with TPOAb levels.

scholarly journals There Is No Elevation of Immunoglobulin E Levels in Albanian Patients with Autoimmune Thyroid Diseases

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Hatixhe Latifi-Pupovci ◽  
Besa Gacaferri-Lumezi ◽  
Violeta Lokaj-Berisha
Keyword(s):  
Immunoglobulin E ◽  
Allergic Diseases ◽  
Serum Levels ◽  
Thyroid Stimulating Hormone ◽  
Thyroid Diseases ◽  
Control Group ◽  
Graves Disease ◽  
Autoimmune Thyroid Diseases ◽  
Autoimmune Thyroid ◽  
Significant Difference

Background. Studies in several ethnic groups reported high incidence of elevated levels of immunoglobulin E (IgE) in patients with autoimmune thyroid diseases (ATD), especially in patients with Graves’ disease.Objective. To study association between serum levels of IgE and thyroid stimulating hormone receptor antibodies (TRAb) in Albanian patients with ATD.Material and Methods. Study was performed in 40 patients with Graves’ disease, 15 patients with Hashimoto’s thyroiditis, and 14 subjects in the control group. The IgE levels were measured by immunoradiometric assay, whereas the TRAb levels were measured by radioreceptor assay.Results. In all groups of subjects the IgE levels were within reference values (<200 kIU/L). Significant difference in mean concentration of IgE was found between two groups of Graves’ disease patients, and those with normal and elevated TRAb levels (22.57 versus 45.03,P<0.05). Positive correlation was found between TRAb and IgE only in Graves’ disease patients (r=0.43,P=0.006).Conclusion. In Albanian patients with ATD there is no elevation of IgE levels. This could be the result of low prevalence of allergic diseases in Albanian population determined by genetic and environmental factors.

scholarly journals Dual-Directional Immunomodulatory Effects of Corbrin Capsule on Autoimmune Thyroid Diseases

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Tianyi He ◽  
Ruxing Zhao ◽  
Yiran Lu ◽  
Wenjuan Li ◽  
Xinguo Hou ◽  
...  
Keyword(s):  
T Cells ◽  
Cytotoxic T Cells ◽  
Thyroid Diseases ◽  
Control Group ◽  
Immunomodulatory Effects ◽  
Control Groups ◽  
Autoimmune Thyroid Diseases ◽  
Significant Drop ◽  
Autoimmune Thyroid ◽  
Normal Ranges

Purpose.To investigate the effects of Corbrin Capsule (CS-C-Q80), a drug derived fromCordyceps sinensis(Berk.) Sacc., on autoimmune thyroid diseases (AITD).Methods.44 Patients with Graves’s disease (GD) and 56 patients with Hashimoto’s thyroiditis (HT) were randomly assigned to treatment group (GD-Tx and HT-Tx) or control group (GD-Ct and HT-Ct). The control groups were given methimazole or levothyroxine only while the treatment groups were given Corbrin Capsule (2.0 g tid) besides the same conventional prescriptions as control groups. Thyroid hormones, thyroid antibodies, and T lymphocyte subsets were quantified at baseline and 24 weeks posttreatment.Results.Significant drop of serum anti-TPO-Ab levels was observed in both GD-Tx and HT-Tx groups. Before treatment, GD patients had higher helper T cells compared to cytotoxic T cells, while HT patients suffered from a nearly inverted proportion of helper T/cytotoxic T cells. There was a significant drop of the helper T/cytotoxic T cells ratio in GD-Tx to the median of the normal ranges after Corbrin treatment for 24 weeks, while that in HT-Tx was elevated.Conclusion.Corbrin Capsule could restore the balance between helper T and cytotoxic T cells in both GD and HT patients with dual-directional immunomodulatory effects. And it could significantly reduce the autoantibody levels in both GD and HT.

scholarly journals The use of X-ray fluorescence determination of the concentration of intrathyroid iodine in thyroidology

2000 ◽  
Vol 46 (4) ◽  
pp. 3-5
Author(s):  
I. O. Tomashevsky ◽  
S. N. Sazonova ◽  
D. I. Tomashevsky ◽  
N. V. Mazurina
Keyword(s):  
Thyroid Diseases ◽  
Control Group ◽  
Thyroid Peroxidase ◽  
Autoimmune Thyroid Diseases ◽  
Thyrotropic Hormone ◽  
X Ray ◽  
Autoimmune Thyroid ◽  
Function Recovery ◽  
Thyroid Goiter

The results of 7-year utilization of a Russian analyzer for noninvasive x-ray fluorescent measurement of intrathyroid stable iodine for diagnosis and monitoring the treatment efficiency in patients with thyroid diseases are analyzed. A total of 400 adults (130 men and 270 women) aged 20-50years and 67children (12 boys and 55 girls) aged 5-16 years with various thyroid diseases were examined. Control group consisted of 60 women and 30 men without thyroid diseases (according to clinical and laboratory studies). Ultrasonography and scintigraphy of the thyroid, measurements of the blood pituitary thyrotropic hormone, thyroid hormones, antibodies to thyroglobulin and thyroid peroxidase, cytological and h istological studies, and a new method for thyroid iodine measurements were used. The results indicate the need in a new diagnostic method based on analysis of intrathyroid iodine. Such a method is needed for 1) prophylactic screening of population, including children, pregnant and nursing women in order to detect (with an accuracy of 7095%) subjects with suspected autoimmune thyroid diseases; 2) accurate evaluation of the degree of thyroid involvement in autoimmune thyroiditis and identification of the pathogenesis of hypothyrosis or thyrotoxicosis; 3) monitoring the efficiency of treatment with iodides, thyroxin, and their combinations and for thyroid function recovery after mercazolil therapy of diffuse thyroid goiter; and 4) differential diagnosis of benign and malignant thyroid diseases.

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