The role of T regulatory cell-associated markers in monitoring tuberculosis treatment completion and failure

Immunologic Research
Sonali AgrawalM Madhan Kumar

Abstract

Monitoring tuberculosis (TB) treatment success is crucial for clinical decision-making. The only available tool in this regard is sputum microscopy, but it has demerits. Moreover, in case of smear negatives and extrapulmonary TB, an efficient tool is still sought for. Therefore, we evaluated T regulatory cell (Treg)-associated markers (CD25, CD39, and FoxP3) and cellular subsets in monitoring treatment success in treatment-completed groups. Expression profile of various markers and subsets were compared real time among treatment-naive pulmonary TB patients (TN-PTB), followed-up treatment-completed (TC-fu) cohort, and a not followed-up (TC-nfu) cohort. Peripheral blood mononuclear cells from various groups were incubated overnight and were stained with antibodies for specific markers and studied by flow cytometry. In both the treatment-completed groups, a decline in frequencies of CD25+ marker and CD4+CD25+, CD4+CD25+FoxP3, CD4+CD25+CD39+ Treg was observed with clearance of infection, indicating their potential in monitoring treatment success. However, in the case of treatment failure patient (Tfp), a drastic increase in frequency of CD4+CD25+FoxP3+ Treg subset was found, indicating its usefulness in predicting treatment failure...Continue Reading

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Citations

Oct 2, 2019·Frontiers in Immunology·Paula Cardona, Pere-Joan Cardona

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Methods Mentioned

BETA
nucleic acid amplification
X-ray
flow cytometry

Software Mentioned

FlowJo
GraphPad
GraphPad Prism

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