TY - JOUR
T1 - Multimodal stimulation screens reveal unique and shared genes limiting T cell fitness
AU - Lin, Chun Pu
AU - Levy, Pierre L.
AU - Alflen, Astrid
AU - Apriamashvili, Georgi
AU - Ligtenberg, Maarten A.
AU - Vredevoogd, David W.
AU - Bleijerveld, Onno B.
AU - Alkan, Ferhat
AU - Malka, Yuval
AU - Hoekman, Liesbeth
AU - Markovits, Ettai
AU - George, Austin
AU - Traets, Joleen J.H.
AU - Krijgsman, Oscar
AU - van Vliet, Alex
AU - Poźniak, Joanna
AU - Pulido-Vicuña, Carlos Ariel
AU - de Bruijn, Beaunelle
AU - van Hal-van Veen, Susan E.
AU - Boshuizen, Julia
AU - van der Helm, Pim W.
AU - Díaz-Gómez, Judit
AU - Warda, Hamdy
AU - Behrens, Leonie M.
AU - Mardesic, Paula
AU - Dehni, Bilal
AU - Visser, Nils L.
AU - Marine, Jean Christophe
AU - Markel, Gal
AU - Faller, William J.
AU - Altelaar, Maarten
AU - Agami, Reuven
AU - Besser, Michal J.
AU - Peeper, Daniel S.
N1 - Publisher Copyright:
© 2024 The Authors
PY - 2024/4/8
Y1 - 2024/4/8
N2 - Genes limiting T cell antitumor activity may serve as therapeutic targets. It has not been systematically studied whether there are regulators that uniquely or broadly contribute to T cell fitness. We perform genome-scale CRISPR-Cas9 knockout screens in primary CD8 T cells to uncover genes negatively impacting fitness upon three modes of stimulation: (1) intense, triggering activation-induced cell death (AICD); (2) acute, triggering expansion; (3) chronic, causing dysfunction. Besides established regulators, we uncover genes controlling T cell fitness either specifically or commonly upon differential stimulation. Dap5 ablation, ranking highly in all three screens, increases translation while enhancing tumor killing. Loss of Icam1-mediated homotypic T cell clustering amplifies cell expansion and effector functions after both acute and intense stimulation. Lastly, Ctbp1 inactivation induces functional T cell persistence exclusively upon chronic stimulation. Our results functionally annotate fitness regulators based on their unique or shared contribution to traits limiting T cell antitumor activity.
AB - Genes limiting T cell antitumor activity may serve as therapeutic targets. It has not been systematically studied whether there are regulators that uniquely or broadly contribute to T cell fitness. We perform genome-scale CRISPR-Cas9 knockout screens in primary CD8 T cells to uncover genes negatively impacting fitness upon three modes of stimulation: (1) intense, triggering activation-induced cell death (AICD); (2) acute, triggering expansion; (3) chronic, causing dysfunction. Besides established regulators, we uncover genes controlling T cell fitness either specifically or commonly upon differential stimulation. Dap5 ablation, ranking highly in all three screens, increases translation while enhancing tumor killing. Loss of Icam1-mediated homotypic T cell clustering amplifies cell expansion and effector functions after both acute and intense stimulation. Lastly, Ctbp1 inactivation induces functional T cell persistence exclusively upon chronic stimulation. Our results functionally annotate fitness regulators based on their unique or shared contribution to traits limiting T cell antitumor activity.
KW - CRISPR-Cas9 screen
KW - Ctbp1
KW - Dap5
KW - Icam1
KW - T cells
KW - activation-induced cell death
KW - cancer immunotherapy
KW - dysfunction
KW - effector function
KW - exhaustion
UR - http://www.scopus.com/inward/record.url?scp=85187980258&partnerID=8YFLogxK
U2 - 10.1016/j.ccell.2024.02.016
DO - 10.1016/j.ccell.2024.02.016
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C2 - 38490212
AN - SCOPUS:85187980258
SN - 1535-6108
VL - 42
SP - 623-645.e10
JO - Cancer Cell
JF - Cancer Cell
IS - 4
ER -