Article citationsMore>>
Freeman, G.J., Long, A.J., Iwai, Y., Bourque, K., Chernova, T., Nishimura, H., Fitz, L.J., Malenkovich, N., Okazaki, T., Byrne, M.C., Horton, H.F., Fouser, L., Carter, L., Ling, V., Bowman, M.R., Carreno, B.M., Collins, M., Wood, C.R. and Honjo, T. (2000) Engagement of the PD-1 Immunoinhibitory Receptor by a Novel B7 Family Member Leads to Negative Regulation of Lymphocyte Activation. Journal of Experimental Medicine, 192, 1027-1034.
https://doi.org/10.1084/jem.192.7.1027
has been cited by the following article:
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TITLE:
The Glycosylphosphatidylinositol Anchor Regulates T Cell Antigen Receptor Induced IL-2 Production
AUTHORS:
Nathalie Vacaresse, Alessandra Ferzoco, Dominik Filipp, Yutaka Amemiya, Arun Seth, David Andrews, Taroh Kinoshita, Michael Julius
KEYWORDS:
GPI Anchor, TCR Regulation, IL-2 Production
JOURNAL NAME:
Open Journal of Immunology,
Vol.11 No.1,
March
12,
2021
ABSTRACT: Differential contributions of the glycosylphosphatidylinositol (GPI)-anchor and GPI-anchored proteins (GPI-AP) to signalling remain poorly understood. Here we show that GPI-AP deficient murine clones produce on average 18 and 181-fold more IL-2 mRNA and protein, respectively, upon T cell receptor (TCR) stimulation, in a cell-intrinsic fashion. This phenotype is formally attributed to a mutation within the transferase complex that predicates the initial step in GPI-anchor biosynthesis. Conditional disruption of the transferase complex enabled the generation of primary GPI-AP deficient CD4+ T cells, which produce on average 10- and 23-fold more IL-2 mRNA and protein, respectively, upon TCR stimulation. Conditional disruption of the transamidase complex yields GPI-sufficient, GPI-AP deficient primary CD4+ T cells. TCR stimulation of these cells yields levels of IL-2 mRNA and protein ranging from 1 - 3 and 3-fold, respectively, of controls. These results provide the first evidence of a profound impact of GPI in the regulation of TCR signalling.
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