Transcriptomics

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Transcriptomic analysis of ChAdOx/MVA P1A vaccine-induced P1A-35-43-specific CD8+ T-cells by single-cell RNA-sequencing


ABSTRACT: This study aimed to analyze the transcriptional profiles of ChAdOx/MVA vaccine induced P1A-35-43-specific CD8+ T-cells and how this is affected by both tissue location and anti-PD-1 treatment. 15V4T3 tumour-bearing DBA/2 mice were vaccinated with ChAdOx/MVA P1A with or without anti-PD-1 treatment. Following treatment, spleens and tumours were collected, processed to single-cell suspension and P1A-35-43-specific CD8+ T-cells were then isolated by MHC-class I multimer staining and FACS. Single-cell RNA-seq experiments were performed using the 10X Genomics platform to analyze P1A-specific CD8+ T-cell transcriptional profiles. Results of this transcriptomic analysis showed that cells segregated into distinct phenotypic subtypes reflecting either effector or stem-like states, the distribution of which was dependent on tissue of origin and treatment status. These results provide an in depth phenotypic analysis of MAGE-type-antigen-specific CD8+ T-cells induced by ChAdOx/MVA vaccination and how phenotype is influenced by physiological location and immune checkpoint blockade treatment.

ORGANISM(S): Mus musculus

PROVIDER: GSE181183 | GEO | 2021/08/01

REPOSITORIES: GEO

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