Adjuvant dendritic cell vaccination induces tumor-specific immune responses in the majority of stage III melanoma patients

Steve Boudewijns, Kalijn F. Bol, Gerty Schreibelt, Harm Westdorp, Johannes C. Textor, Michelle M. van Rossum, Nicole M. Scharenborg, Annemiek J. de Boer, Mandy W.M.M. van de Rakt, Jeanne M. Pots, Tom G.M. van Oorschot, Tjitske Duiveman-de Boer, Michel A. Olde Nordkamp, Wilmy S.E.C. van Meeteren, Winette T.A. van der Graaf, Johannes J. Bonenkamp, Johannes H.W. de Wilt, Erik H.J.G. Aarntzen, Cornelis J.A. Punt, Winald R. GerritsenCarl G. Figdor, I. Jolanda M. de Vries

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To determine the effectiveness of adjuvant dendritic cell (DC) vaccination to induce tumor-specific immunological responses in stage III melanoma patients. Experimental design: Retrospective analysis of stage III melanoma patients, vaccinated with autologous monocyte-derived DC loaded with tumor-associated antigens (TAA) gp100 and tyrosinase after radical lymph node dissection. Skin-test infiltrating lymphocytes (SKILs) obtained from delayed-type hypersensitivity skin-test biopsies were analyzed for the presence of TAA-specific CD8+ T cells by tetrameric MHC-peptide complexes and by functional TAA-specific T cell assays, defined by peptide-recognition (T2 cells) and/or tumor-recognition (BLM and/or MEL624) with specific production of Th1 cytokines and no Th2 cytokines. Results: Ninety-seven patients were analyzed: 21 with stage IIIA, 34 with stage IIIB, and 42 had stage IIIC disease. Tetramer-positive CD8+ T cells were present in 68 patients (70%), and 24 of them showed a response against all 3 epitopes tested (gp100:154–162, gp100:280–288, and tyrosinase:369–377) at any point during vaccinations. A functional T cell response was found in 62 patients (64%). Rates of peptide-recognition of gp100:154–162, gp100:280–288, and tyrosinase:369–377 were 40%, 29%, and 45%, respectively. Median recurrence-free survival and distant metastasis-free survival of the whole study population were 23.0 mo and 36.8 mo, respectively. Conclusions: DC vaccination induces a functional TAA-specific T cell response in the majority of stage III melanoma patients, indicating it is more effective in stage III than in stage IV melanoma patients. Furthermore, performing multiple cycles of vaccinations enhances the chance of a broader immune response.

Original languageEnglish (US)
Article numbere1191732
JournalOncoImmunology
Volume5
Issue number7
DOIs
StatePublished - Jul 2 2016

Keywords

  • DTH
  • Dendritic cell
  • immune response
  • skin-infiltrating lymphocytes
  • stage III melanoma
  • vaccination

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Oncology

Fingerprint Dive into the research topics of 'Adjuvant dendritic cell vaccination induces tumor-specific immune responses in the majority of stage III melanoma patients'. Together they form a unique fingerprint.

Cite this