Skip to Main content Skip to Navigation
Journal articles

Proportions of blood-borne Vd1þ and Vd2þ T-cells are associated with overall survival of melanoma patients treated with ipilimumab

Abstract : Human γδ T-cells possess regulatory and cytotoxic capabilities, and could potentially influence the efficacy of immunotherapies. We analysed the frequencies of peripheral γδ T-cells, including their most prominent subsets (Vδ1+ and Vδ2+ cells) and differentiation states in 109 melanoma patients and 109 healthy controls. We additionally analysed the impact of γδ T-cells on overall survival (OS) calculated from the first dose of ipilimumab in melanoma patients. Higher median frequencies of Vδ1+ cells and lower median frequencies of Vδ2+ cells were identified in patients compared to healthy subjects (Vδ1+: 30% versus 15%, Vδ2+: 39% versus 64%, both p < 0.001). Patients with higher frequencies of Vδ1+ cells (≥30%) had poorer OS (p = 0.043) and a Vδ1+ differentiation signature dominated by late-differentiated phenotypes. In contrast, higher frequencies of Vδ2+ cells (≥39%) were associated with longer survival (p = 0.031) independent of the M category or lactate dehydrogenase level. Patients with decreasing frequencies of Vδ2+ cells under ipilimumab treatment had worse OS and a lower rate of clinical benefit than patients without such decreases. Therefore, we suggest frequencies of both Vδ1+ and Vδ2+ cells as candidate biomarkers for outcome in melanoma patients following ipilimumab. Further studies are needed to validate these results and to clarify whether they represent prognostic associations or whether γδ T-cells are specifically and/or functionally linked to the mode of action of ipilimumab.
Document type :
Journal articles
Complete list of metadatas

Cited literature [48 references]  Display  Hide  Download

https://www.hal.inserm.fr/inserm-01408787
Contributor : Elizabeth Bernardo <>
Submitted on : Monday, December 5, 2016 - 1:52:59 PM
Last modification on : Tuesday, July 21, 2020 - 3:58:18 AM
Long-term archiving on: : Thursday, March 23, 2017 - 12:33:20 AM

File

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : jamais

Please log in to resquest access to the document

Identifiers

Collections

Citation

Kilian Wistuba-Hamprecht, Alexander Martens, Karin Haehnel, Marnix Geukes Foppen, Jianda Yuan, et al.. Proportions of blood-borne Vd1þ and Vd2þ T-cells are associated with overall survival of melanoma patients treated with ipilimumab. European Journal of Cancer, Elsevier, 2016, 64, pp.116-126. ⟨10.1016/j.ejca.2016.06.001⟩. ⟨inserm-01408787⟩

Share

Metrics

Record views

601