Differences in PPD- and mitogen-induced T-cell activation marker expression characterize immunopathology in acute tuberculosis patients

Abstract Impaired T-cell responses to mitogens and high T-cell activation marker (TAM) expression on Mycobacterium tuberculosis–specific T-cells characterize immunopathology in patients with tuberculosis (TB). In a study of patients with TB (n = 60) and asymptomatic contacts (controls, n = 37), we found that TB patients had higher $ CD38^{+} $ T-cell proportions specific for M. tuberculosis protein ($ PPD_{Mtb} $), yet total proportions of $ PPD_{Mtb} $-specific T-cells were comparable. Notably, both activated ($ CD38^{+} $) and total IFN-$ γ^{+} $ T-cells from TB patients had lower mitogen (phytohemagglutinin, PHA)-induced responses. This impaired mitogen response improved the classification efficacy of the TAM-TB assay, especially employing the PPD/PHA-induced T-cell ratio..

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:43

Enthalten in:

European journal of clinical microbiology & infectious diseases - 43(2024), 3 vom: 03. Jan., Seite 611-616

Sprache:

Englisch

Beteiligte Personen:

Acheampong, Isaac [VerfasserIn]
Minadzi, Difery [VerfasserIn]
Laing, Edwin F. [VerfasserIn]
Frimpong, Michael [VerfasserIn]
Vivekanandan, Monika M. [VerfasserIn]
Yeboah, Augustine [VerfasserIn]
Adankwah, Ernest [VerfasserIn]
Aniagyei, Wilfred [VerfasserIn]
Arthur, Joseph F. [VerfasserIn]
Lamptey, Millicent [VerfasserIn]
Abass, Mohammed K. [VerfasserIn]
Kumbel, Francis [VerfasserIn]
Osei-Yeboah, Francis [VerfasserIn]
Gawusu, Amidu [VerfasserIn]
Debrah, Linda Batsa [VerfasserIn]
Owusu, Dorcas O. [VerfasserIn]
Debrah, Alexander [VerfasserIn]
Mayatepek, Ertan [VerfasserIn]
Seyfarth, Julia [VerfasserIn]
Phillips, Richard O. [VerfasserIn]
Jacobsen, Marc [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

Anergy
Immunopathology
Mitogen
T-cell activation marker
Tuberculosis

Anmerkungen:

© The Author(s) 2024

doi:

10.1007/s10096-023-04741-3

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR055040357