Combining Cellular Immunology With RNAseq to Identify Novel Chlamydia T-Cell Subset Signatures.
J Infect Dis
; 225(11): 2033-2042, 2022 06 01.
Article
em En
| MEDLINE
| ID: mdl-35172331
ABSTRACT
Chlamydia trachomatis serovars A-L cause important diseases of the eyes and reproductive tract by infecting epithelium lining those organs. A major hurdle for vaccine trials is finding a surrogate biomarker for protective immunity. Investigational data argues for T-cell biomarker(s) reflecting mucosal adaption, cytokine polarization, B-cell help, antibacterial effector mechanisms, or some combination thereof. A human investigation and 2 mouse studies link IL-13 to protection from infection/immunopathology. We performed RNAseq on T cells resident in spleens and genital tracts of naturally immune mice. CD4 signatures were consistent with helper function that differed by site including a genital tract-specific Fgl2 signal. The genital tract CD8 signature featured IL-10 and promotion of healing/scarring with a unique transcription of granzyme A. The RNAseq data was used to refine previously published CD4γ13 and CD8γ13 transcriptomes derived from protective T-cell clones, potentially identifying practicable T-cell subset signatures for assessing Chlamydia vaccine candidates.
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Base de dados:
MEDLINE
Assunto principal:
Infecções por Chlamydia
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article