A side-by-side comparison of T cell reactivity to fifty-nine Mycobacterium tuberculosis antigens in diverse populations from five continents.
Tuberculosis (Edinb)
; 95(6): 713-721, 2015 Dec.
Article
en En
| MEDLINE
| ID: mdl-26277695
ABSTRACT
We compared T cell recognition of 59 prevalently recognized Mycobacterium tuberculosis (MTB) antigens in individuals latently infected with MTB (LTBI), and uninfected individuals with previous BCG vaccination, from nine locations and populations with different HLA distribution, MTB exposure rates, and standards of TB care. This comparison revealed similar response magnitudes in diverse LTBI and BCG-vaccinated cohorts and significant correlation between responses in LTBIs from the USA and other locations. Many antigens were uniformly recognized, suggesting suitability for inclusion in vaccines targeting diverse populations. Several antigens were similarly immunodominant in LTBI and BCG cohorts, suggesting applicability for vaccines aimed at boosting BCG responses. The panel of MTB antigens will be valuable for characterizing MTB-specific CD4 T cell responses irrespective of ethnicity, infecting MTB strains and BCG vaccination status. Our results illustrate how a comparative analysis can provide insight into the relative immunogenicity of existing and novel vaccine candidates in LTBIs.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
1_ASSA2030
/
2_ODS3
/
3_ND
Problema de salud:
1_doencas_transmissiveis
/
2_enfermedades_transmissibles
/
3_neglected_diseases
/
3_tuberculosis
/
3_zoonosis
Asunto principal:
Linfocitos T CD4-Positivos
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Tuberculosis Latente
/
Mycobacterium tuberculosis
/
Antígenos Bacterianos
Tipo de estudio:
Clinical_trials
/
Diagnostic_studies
Límite:
Adolescent
/
Adult
/
Aged
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Africa
/
America do norte
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America do sul
/
Asia
/
Brasil
/
Europa
Idioma:
En
Revista:
Tuberculosis (Edinb)
Año:
2015
Tipo del documento:
Article
País de afiliación:
Estados Unidos