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The DOI matches its Crossref record; 76 of the 76 references it cites were found in a registry or an index.

PD-L1 regulates the development, maintenance, and function of induced regulatory T cells

Open access
Francisco, Loise M., Salinas, Victor H., Brown, Keturah E., Vanguri, Vijay K., Freeman, Gordon J., Kuchroo, Vijay K., Sharpe, Arlene H.·2009·Journal of Experimental Medicine

Abstract

Both the programmed death (PD) 1–PD-ligand (PD-L) pathway and regulatory T (T reg) cells are instrumental to the maintenance of peripheral tolerance. We demonstrate that PD-L1 has a pivotal role in regulating induced T reg (iT reg) cell development and sustaining iT reg cell function. PD-L1−/− antigen-presenting cells minimally convert naive CD4 T cells to iT reg cells, showing the essential role of PD-L1 for iT reg cell induction. PD-L1–coated beads induce iT reg cells in vitro, indicating that PD-L1 itself regulates iT reg cell development. Furthermore, PD-L1 enhances and sustains Foxp3 expression and the suppressive function of iT reg cells. The obligatory role for PD-L1 in controlling iT reg cell development and function in vivo is illustrated by a marked reduction in iT reg cell conversion and rapid onset of a fatal inflammatory phenotype in PD-L1−/−PD-L2−/− Rag−/− recipients of naive CD4 T cells. PD-L1 iT reg cell development is mediated through the down-regulation of phospho-Akt, mTOR, S6, and ERK2 and concomitant with the up-regulation of PTEN, all key signaling molecules which are critical for iT reg cell development. Thus, PD-L1 can inhibit T cell responses by promoting both the induction and maintenance of iT reg cells. These studies define a novel mechanism for iT reg cell development and function, as well as a new strategy for controlling T reg cell plasticity.

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Metadata

Authors
Francisco, L. M., Salinas, V. H., Brown, K. E., Vanguri, V. K., Freeman, G. J., Kuchroo, V. K., & Sharpe, A. H.
Venue
Journal of Experimental Medicine
Published
2009-12-14
Volume
206
Issue
13
Pages
3015-3029
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2108933323
Cited by
2,079
References
76
FWCI
23.93
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: PD-L1 regulates the development, maintenance, and function of induced regulatory T cells. https://app.cochat.ai/papers/10.1084/jem.20090847
The paper
Francisco, L. M., Salinas, V. H., Brown, K. E., Vanguri, V. K., Freeman, G. J., Kuchroo, V. K., & Sharpe, A. H. (2009). PD-L1 regulates the development, maintenance, and function of induced regulatory T cells. Journal of Experimental Medicine. https://doi.org/10.1084/jem.20090847

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