Author
Listed:
- Federica Bozzano
(University of Genova
Center for Excellence in Biomedical Research, University of Genova)
- Francesco Marras
(Istituto Giannina Gaslini)
- Maria Libera Ascierto
(Clinical Center and Center of Human Immunology, National Institutes of Health
Johns Hopkins University)
- Claudia Cantoni
(University of Genova
Center for Excellence in Biomedical Research, University of Genova
Istituto Giannina Gaslini)
- Giovanni Cenderello
(U.O.C. Malattie Infettive, Ospedale Galliera)
- Chiara Dentone
(U.O.C. Malattie Infettive, Ospedale Sanremo)
- Antonio Di Biagio
(Clinica Malattie Infettive, IRCCS AOU San Martino-IST Genova, Istituto Nazionale per la Ricerca sul Cancro)
- Giancarlo Orofino
(SOC Malattie Infettive ASO S.S. Antonio e Biagio e C. Arrigo Alessandria)
- Eugenio Mantia
(U.O.C. Malattie Infettive, Ospedale Amedeo di Savoia)
- Silvia Boni
(U.O.C. Malattie Infettive, Ospedale Sant’Andrea)
- Pasqualina De Leo
(U.O.C. Malattie Infettive, Azienda Sanitaria Locale n.2)
- Antonino Picciotto
(Allergy and Respiratory Unit, University of Genova)
- Fulvio Braido
(Hepatology Unit, University of Genova)
- Francesca Antonini
(Istituto Giannina Gaslini)
- Ena Wang
(Clinical Center and Center of Human Immunology, National Institutes of Health
Sidra Medical and Research Centre)
- Francesco Marincola
(Sidra Medical and Research Centre)
- Lorenzo Moretta
(Istituto Giannina Gaslini)
- Andrea De Maria
(Center for Excellence in Biomedical Research, University of Genova
Clinica Malattie Infettive, IRCCS AOU San Martino-IST Genova, Istituto Nazionale per la Ricerca sul Cancro
DISSAL, University of Genova)
Abstract
During chronic inflammatory disorders, a persistent natural killer (NK) cell derangement is observed. While increased cell turnover is expected, little is known about whether and how NK-cell homeostatic balance is maintained. Here, flow cytometric analysis of peripheral blood mononuclear cells in chronic inflammatory disorders, both infectious and non-infectious, reveals the presence of a CD34+CD226(DNAM-1)brightCXCR4+ cell population displaying transcriptional signatures typical of common lymphocyte precursors and giving rise to NK-cell progenies with high expression of activating receptors and mature function and even to α/β T lymphocytes. CD34+CD226brightCXCR4+ cells reside in bone marrow, hardly circulate in healthy donors and are absent in cord blood. Their proportion correlates with the degree of inflammation, reflecting lymphoid cell turnover/reconstitution during chronic inflammation. These findings provide insight on intermediate stages of NK-cell development, a view of emergency recruitment of cell precursors, and upgrade our understanding and monitoring of chronic inflammatory conditions.
Suggested Citation
Federica Bozzano & Francesco Marras & Maria Libera Ascierto & Claudia Cantoni & Giovanni Cenderello & Chiara Dentone & Antonio Di Biagio & Giancarlo Orofino & Eugenio Mantia & Silvia Boni & Pasqualina, 2015.
"‘Emergency exit’ of bone-marrow-resident CD34+DNAM-1brightCXCR4+-committed lymphoid precursors during chronic infection and inflammation,"
Nature Communications, Nature, vol. 6(1), pages 1-14, November.
Handle:
RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9109
DOI: 10.1038/ncomms9109
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