Tools
Tools
Al-Ansari, Farah, Lahooti, Hooshang, Stokes, Leanne 
ORCID: https://orcid.org/0000-0003-4013-6781, Edirimanne, Senarath and Wall, Jack
(2018)
Correlation between thyroidal and peripheral blood total T cells, CD8+ T cells, and CD8+ T- regulatory cells and T-cell reactivity to calsequestrin and collagen XIII in patients with Graves’ ophthalmopathy.
Endocrine Research, 43 (4).
pp. 264-274.
ISSN 0743-5800
Abstract
Purpose/aim of the study: Graves’ ophthalmopathy (GO) is closely related to the thyroid autoimmune disorder Graves’ disease. Previous studies have suggested roles for thyroidal CD8+ T cells and autoimmunity against calsequestrin-1 (CASQ)-1 in the link between thyroidal and orbital autoimmune reactions in GO. A role for autoimmunity against CollXIII has also been suggested. In this study, we aimed to investigate correlations between some thyroidal and peripheral blood T-cell subsets and thyroidal T-cell reactivity against CASQ1 and CollXIII in patients with GO. Materials and methods: Fresh thyroid tissues were processed by enzyme digestion and density gradient to isolate mononuclear cells (MNCs). Peripheral blood MNCs were also isolated using density gradient. Flow-cytometric analysis was used to identify the various T-cell subsets. T -cell reactivity to CASQ1 and CollXIII was measured by a 5-day culture of the MNCs and BrdU uptake method. Results: We found a positive correlation between thyroidal CD8+ T cells and CD8+ T-regulatory (T-reg) cells in patients with GO. Thyroidal T cells from two out of the three patients with GO tested (66.7%) showed a positive response to CASQ1, while thyroidal T cells from none of the six Graves’ Disease patients without ophthalmopathy (GD) tested showed a positive response to this antigen. Thyroidal T cells from these patient groups however, showed no significant differences in their response to CollXIII. Conclusions: Our observations provide further evidence for a possible role of thyroidal CD8+ T cells, CD8+ T-reg cells and the autoantigen CASQ1 in the link between thyroidal and orbital autoimmune reactions of GO.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Pharmacy (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Molecular and Tissue Pharmacology |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 27 Nov 2019 01:58 |
| Last Modified: | 25 Sep 2024 14:21 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/73074 |
| DOI: | 10.1080/07435800.2018.1470639 |
Actions (login required)
 |
View Item |