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Cancer Immunol Immunother. 2010 Aug;59(8):1185-95. doi: 10.1007/s00262-010-0843-z. Epub 2010 Mar 25.

Monophosphoryl lipid A plus IFNgamma maturation of dendritic cells induces antigen-specific CD8+ cytotoxic T cells with high cytolytic potential.

Author information

1
Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, P.O. Box 9190, 1006 AD, Amsterdam, The Netherlands. a.tenbrinke@sanquin.nl

Abstract

Dendritic cells (DCs) are promising antigen presenting cells for cancer treatment. Previously, we showed that the combination of monophosphoryl lipid A (MPLA) with IFNgamma generates mature DCs that produce IL-12 and polarize CD4(+) T cells towards a Th1 phenotype. Here, we extended these observations by showing that the DCs generated with the clinical grade maturation cocktail of MPLA/IFNgamma induce superior tumour antigen-specific CD8(+) CTL responses compared to the cytokine cocktail matured DCs that are currently used in the clinic. MPLA/IFNgamma DCs can induce CTL responses in healthy individuals as well as in melanoma patients. The CTL induction was mainly dependent on the IL-12 produced by the MPLA/IFNgamma DCs. The high amounts of induced CTLs are functional as they produce IFNgamma and lyse target cells and this cytolytic activity is antigen specific and HLA restricted. Furthermore, the CTLs proved to kill tumour cells expressing endogenous tumour antigen in vitro. Therefore, MPLA/IFNgamma DCs are very promising for the use in future cancer immunotherapy.

PMID:
20336295
DOI:
10.1007/s00262-010-0843-z
[Indexed for MEDLINE]

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