Transcriptomics

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SIFT-seq: VDJ and scRNA-seq of T cells targeting public neoantigens


ABSTRACT: We developed a modular, high-throughput discovery platform to simultaneously test whether Mut PIK3Ca is immunogenic and to retrieve paired a/b TCR gene sequences that confer specificity to this NeoAg. This method, termed Stimulation Induced Functional TCR sequencing (SIFT-seq), combines single-cell (sc) TCR V(D)J and transcriptome sequencing. Here, microwell cultures of in vitro stimulated T cells with confirmed neoantigen-specific recognition are selected for SIFT-seq. Matched aliquots of selected wells are acutely stimulated with autologous antigen-presenting cells presenting WT or Mut PI3Ka and the transcriptomic profile of individual clonotypes is assessed to identify neoantigen-specific T cells and retrieve their TCR gene sequences.

ORGANISM(S): Homo sapiens

PROVIDER: GSE172403 | GEO | 2022/03/03

REPOSITORIES: GEO

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