RRC ID 42003
Author Yamanaka R, Tsuchiya N, Yajima N, Honma J, Hasegawa H, Tanaka R, Ramsey J, Blaese RM, Xanthopoulos KG.
Title Induction of an antitumor immunological response by an intratumoral injection of dendritic cells pulsed with genetically engineered Semliki Forest virus to produce interleukin-18 combined with the systemic administration of interleukin-12.
Journal J Neurosurg
Abstract OBJECT:The aim of this study was to investigate further immunogene treatment of malignant brain tumor to improve its therapeutic efficacy.
METHODS:Intratumoral dendritic cells pulsed with Semliki Forest virus (SFV)-interleukin-18 (IL-18) and/or systemic IL-12 were injected into mice bearing the B16 brain tumor. To study the immune mechanisms involved in tumor regression, we monitored the growth of implanted B16 brain tumor cells in T cell-depleted mice and IFNgamma-neutralized mice. To analyze the protective immunity created by tumor inoculation, B16 cells were injected into the left thighs of mice that had received an inoculation, and tumor growth was monitored. The local delivery of dendritic cells pulsed with IL-18 bound by SFV combined with the systemic administration of IL-12 enhanced the induction of the T helper type 1 response from tumor-specific CD4+ and CD8+ T cells and natural killer cells as well as antitumor immunity. Interferon-gamma is partly responsible for this IL-18-mediated antitumor immunity. Furthermore, the protective immunity is mediated mainly by CD8+ T cells.
CONCLUSIONS:Immunogene therapy that combines the local administration of dendritic cells pulsed with IL-18 bound by SFV and the systemic administration of IL-12 may be an excellent candidate for the development of a new treatment protocol. A self-replicating SFV system may therefore open a novel approach for the treatment of malignant brain tumor.
Volume 99(4)
Pages 746-53
Published 2003-10-1
DOI 10.3171/jns.2003.99.4.0746
PMID 14567611
MeSH Animals Antibody Formation Antigens, CD / genetics Antigens, CD / immunology Brain Neoplasms* / immunology Brain Neoplasms* / therapy Brain Neoplasms* / virology Cricetinae DNA Primers / genetics DNA Primers / immunology DNA, Complementary / genetics DNA, Complementary / immunology Dendritic Cells / immunology* Dendritic Cells / virology* Genetic Engineering / methods* Genetic Therapy / methods* Glioma* / immunology Glioma* / therapy Glioma* / virology Immunogenetics / methods Immunotherapy, Active / methods* Interleukin-12* / biosynthesis Interleukin-12* / immunology Interleukin-12* / therapeutic use Interleukin-18* / biosynthesis Interleukin-18* / immunology Interleukin-18* / therapeutic use Killer Cells, Natural / immunology Male Mice Mice, Inbred C57BL Reverse Transcriptase Polymerase Chain Reaction Semliki forest virus / immunology* T-Lymphocytes, Helper-Inducer / immunology Transduction, Genetic Tumor Cells, Cultured / transplantation
IF 3.968
Times Cited 36
Human and Animal Cells YAC-1(RCB1165)