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© Research
Publication : Science translational medicine

Clinical impact of the NKp30/B7-H6 axis in high-risk neuroblastoma patients

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Science translational medicine - 15 Apr 2015

Semeraro M, Rusakiewicz S, Minard-Colin V, Delahaye NF, Enot D, Vély F, Marabelle A, Papoular B, Piperoglou C, Ponzoni M, Perri P, Tchirkov A, Matta J, Lapierre V, Shekarian T, Valsesia-Wittmann S, Commo F, Prada N, Poirier-Colame V, Bressac B, Cotteret S, Brugieres L, Farace F, Chaput N, Kroemer G, Valteau-Couanet D, Zitvogel L

Link to Pubmed [PMID] – 25877893

Sci Transl Med 2015 Apr;7(283):283ra55

The immunosurveillance mechanisms governing high-risk neuroblastoma (HR-NB), a major pediatric malignancy, have been elusive. We identify a potential role for natural killer (NK) cells, in particular the interaction between the NK receptor NKp30 and its ligand, B7-H6, in the metastatic progression and survival of HR-NB after myeloablative multimodal chemotherapy and stem cell transplantation. NB cells expressing the NKp30 ligand B7-H6 stimulated NK cells in an NKp30-dependent manner. Serum concentration of soluble B7-H6 correlated with the down-regulation of NKp30, bone marrow metastases, and chemoresistance, and soluble B7-H6 contained in the serum of HR-NB patients inhibited NK cell functions in vitro. The expression of distinct NKp30 isoforms affecting the polarization of NK cell functions correlated with 10-year event-free survival in three independent cohorts of HR-NB in remission from metastases after induction chemotherapy (n = 196, P 18 months. We conclude that the interaction between NKp30 and B7-H6 may contribute to the fate of NB patients and that both the expression of NKp30 isoforms on circulating NK cells and the concentration of soluble B7-H6 in the serum may be clinically useful as biomarkers for risk stratification.

https://www.ncbi.nlm.nih.gov/pubmed/25877893