Evaluation of Mycobacterium tuberculosis specific antigen-stimulated CD27
-CD38
+IFN-γ
+CD4
+ T cells for discrimination of active tuberculosis.
BMC Infect Dis 2022;
22:899. [PMID:
36457066 PMCID:
PMC9714055 DOI:
10.1186/s12879-022-07895-1]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND
Active tuberculosis (ATB) originates from primary Mycobacterium tuberculosis (MTB) infection or reactivation of latent tuberculosis. Besides bacteriological examination, MTB-reactive immunocytes detection can be an alternative testing for discrimination of active tuberculosis. The purpose of this study is to investigate the accuracy of peripheral blood CD27-CD38+IFN-γ+CD4+T cells in ATB diagnosis.
METHODS
This prospective diagnostic accuracy study was conducted at Shanghai Pulmonary Hospital between January 2019 and December 2021. Patients with ATB, non-tuberculosis mycobacterium infection (NTM), latent tuberculosis infection (LTBI), other respiratory diseases (OD), and healthy individuals (HC) were enrolled. The accuracy of CD27-CD38+IFN-γ+CD4+/CD4+ and other phenotypic markers for ATB diagnosis was assessed.
RESULTS
A total of 376 patients (237 ATB, 38 LTBI, 8 NTM, 50 OD, and 43 HC) were enrolled. The ratios of CD4+IFN-γ+CD27- and CD4+IFN-γ+CD27-CD38+ profiles in CD4+IFN-γ+ cells and the ratios of CD4+IFN-γ+CD38+, CD4+IFN-γ+CD27-, and CD4+IFN-γ+CD38+CD27- profiles in CD4+ cells in the ATB group were significantly higher than in the other groups. The area under the curve (AUC) of CD27-CD38+IFN-γ+CD4+/CD4+ for the diagnosis of ATB was the highest, with a value of 0.890. With the optimal cutoff value of 1.34 × 10-4, the sensitivity and specificity of CD27-CD38+IFN-γ+CD4+/CD4+ for ATB diagnosis was 0.869 and 0.849, respectively.
CONCLUSION
CD27-CD38+IFN-γ+CD4+/CD4+ might be a potential biomarker for active tuberculosis diagnosis.
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