PT - JOURNAL ARTICLE AU - Shinobu Yamamoto AU - Elizabeth Whalen AU - Daisuke Chujo AU - Durgha Nattamai AU - Nicole Baldwin AU - Kimberly O’Brien AU - Quynh-Anh Nguyen AU - Vivian Gersuk AU - Esperanza Anguiano AU - Junbao Yang AU - William W Kwok AU - Jacques Banchereau AU - Hideki Ueno AU - Damien Chaussabel TI - A systems approach to the characterization and classification of T-cell responses AID - 10.1101/175620 DP - 2017 Jan 01 TA - bioRxiv PG - 175620 4099 - http://biorxiv.org/content/early/2017/08/13/175620.short 4100 - http://biorxiv.org/content/early/2017/08/13/175620.full AB - Types of T-cell responses are categorized on the basis of a limited number of molecular markers selected using a priori knowledge about T-cell immunobiology. We sought to develop a novel systems-based approach for the creation of an unbiased framework enabling assessment of antigenic-peptide specific T-cell responses in vitro. A meta-analysis of transcriptome data from PBMCs stimulated with a wide range of peptides identified patterns of gene regulation that provided an unbiased classification of types of antigen-specific responses. Further analysis yielded new insight about the molecular processes engaged following antigenic stimulation. This led for instance to the identification of transcription factors not previously studied in the context of T-cell differentiation. Taken together this profiling approach can serve as a basis for the unbiased characterization of antigen-specific responses and as a foundation for the development of novel systems-based immune profiling assays.