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Expression of ectonucleotidase CD39 by Foxp3+ Treg cells: hydrolysis of extracellular ATP and immune suppression

Borsellino, Giovanna, Kleinewietfeld, Markus, Di Mitri, Diletta, Sternjak, Alexander, Diamantini, Adamo, Giometto, Raffaella, Höpner, Sabine, Centonze, Diego, Bernardi, Giorgio, Dell'Acqua, Maria Luisa, Rossini, Paolo Maria, Battistini, Luca, Rötzschke, Olaf, Falk, Kirsten·2007·Blood

Abstract

In the immune system, extracellular ATP functions as a “natural adjuvant” that exhibits multiple proinflammatory effects. It is released by damaged cells as an indicator of trauma and cell death but can be inactivated by CD39 (nucleoside triphosphate diphosphohydrolase-1 [NTPDase 1]), an ectoenzyme that degrades ATP to AMP. Here, we show that CD39 is expressed primarily by immune-suppressive Foxp3+ regulatory T (Treg) cells. In mice, the enzyme is present on virtually all CD4+CD25+ cells. CD39 expression is driven by the Treg-specific transcription factor Foxp3 and its catalytic activity is strongly enhanced by T-cell receptor (TCR) ligation. Activated Treg cells are therefore able to abrogate ATP-related effects such as P2 receptor-mediated cell toxicity and ATP-driven maturation of dendritic cells. Also, human Treg cells express CD39. In contrast to mice, CD39 expression in man is restricted to a subset of Foxp3+ regulatory effector/memory-like T (TREM) cells. Notably, patients with the remitting/relapsing form of multiple sclerosis (MS) have strikingly reduced numbers of CD39+ Treg cells in the blood. Thus, in humans CD39 is a marker of a Treg subset likely involved in the control of the inflammatory autoimmune disease.

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Crossref · 10.1182/blood-2006-12-064527

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Metadata

Authors
Borsellino, G., Kleinewietfeld, M., Di Mitri, D., Sternjak, A., Diamantini, A., Giometto, R., Höpner, S., Centonze, D., Bernardi, G., Dell'Acqua, M. L., Rossini, P. M., Battistini, L., Rötzschke, O., & Falk, K.
Venue
Blood
Published
2007-08-15
Volume
110
Issue
4
Pages
1225-1232
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2053763669
Cited by
1,286
References
44
FWCI
28.15
Type
journal article
Language
en
Open access
closed

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Borsellino, G., Kleinewietfeld, M., Di Mitri, D., Sternjak, A., Diamantini, A., Giometto, R., Höpner, S., Centonze, D., Bernardi, G., Dell'Acqua, M. L., Rossini, P. M., Battistini, L., Rötzschke, O., & Falk, K. (2007). Expression of ectonucleotidase CD39 by Foxp3+ Treg cells: hydrolysis of extracellular ATP and immune suppression. Blood. https://doi.org/10.1182/blood-2006-12-064527

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.