Enhanced detection of antigen-specific T cells by a multiplexed AIM assay.

ABSTRACT: Broadly applicable methods to identify and characterize antigen-specific CD4⁺ and CD8⁺ T cells are key to immunology research, including studies of vaccine responses and immunity to infectious diseases. We developed a multiplexed activation-induced marker (AIM) assay that presents several advantages compared to single pairs of AIMs. The simultaneous measurement of four AIMs (CD69, 4-1BB, OX40, and CD40L) creates six AIM pairs that define CD4⁺ T cell populations with partial and variable overlap. When combined in an AND/OR Boolean gating strategy for analysis, this approach enhances CD4⁺ T cell detection compared to any single AIM pair, while CD8⁺ T cells are dominated by CD69/4-1BB co-expression. Supervised and unsupervised clustering

SUBMITTER: Lemieux A 

PROVIDER: S-EPMC10831934 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature