Singapore Ocular Tuberculosis Immunity Study (SPOTIS): Role of T-lymphocyte Profiling in Patients with Presumed Ocular Tuberculosis
- 17 November 2021
- journal article
- research article
- Published by Taylor & Francis Ltd in Ocular Immunology and Inflammation
- Vol. 29 (7-8), 1489-1495
- https://doi.org/10.1080/09273948.2020.1767791
Abstract
Objective A prospective clinical study to assess the utility of CD4 + T cell lymphocyte profiling from peripheral blood in patients with ocular tuberculosis (TB). Methods Thirty-six Asian patients with presumed diagnosis of ocular TB were recruited for T-lymphocyte profiling. MTB antigen specific CD4 assay was set up, and flow cytometric data were analyzed using FlowJo software. Results There was no significant difference between treatment responders and non-responders for the proportion of CD4 + T cells specific for PPD or ESAT-6+ CFP-10, but treatment responders did have significantly higher frequency of CD38+ (p= .0357) and CD38+ HLA-DR+ (p= .0357) on the PPD-specific CD4 + T cells. Conclusion This study is one of the first of its kind to look into MTB specific T cell activation marker profiling of peripheral blood in patients with ocular TB. Further studies need to be undertaken to assess the utility of CD4 + T cell phenotypes as a biomarker for ocular TB.Funding Information
- Singapore National Eye Centre Health Research Endowment Fund (R1202/8/2015)
- Tan Tock Seng Hospital Personalised Medicine Seed Funding Programme (PMSFP 05-2015-05)
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