RRC ID 41901
Author Ito A, Tanaka K, Kondo K, Shinkai M, Honda H, Matsumoto K, Saida T, Kobayashi T.
Title Tumor regression by combined immunotherapy and hyperthermia using magnetic nanoparticles in an experimental subcutaneous murine melanoma.
Journal Cancer Sci
Abstract Immunotherapy (IT) has become an accepted therapeutic modality. We previously reported that intracellular hyperthermia (IH) using magnetic nanoparticles induces antitumor immunity. We undertook these studies in order to study the combined effects of IT and IH on melanoma. Magnetite cationic liposomes (MCLs) have a positive surface charge and generate heat in an alternating magnetic field (AMF) due to hysteresis loss. MCLs were injected into a B16 melanoma nodule in C57BL/6 mice, which were subjected to AMF for 30 min. The temperature at the tumor reached 43 degrees C and was maintained by controlling the magnetic field intensity. At 24 h after IH, interleukin-2 (IL-2) or granulocyte macrophage-colony stimulating factor (GM-CSF) was injected directly into the melanoma. Mice were divided into six groups: group I (control), group II (IH), group III (IL-2), group IV (GM-CSF), group V (IH + IL-2), and group VI (IH + GM-CSF). Complete regression of tumors was observed in mice of groups V and VI (75% (6/8) and 40% (4/10) of the mice, respectively), while no tumor regression was observed in mice of the other groups. This study supports the combined use of IT and IH using MCLs in patients with advanced malignancies.
Volume 94(3)
Pages 308-13
Published 2003-3-1
DOI 10.1111/j.1349-7006.2003.tb01438.x
PMID 12824927
MeSH Animals Combined Modality Therapy Disease Models, Animal Granulocyte-Macrophage Colony-Stimulating Factor / therapeutic use HSP70 Heat-Shock Proteins / analysis Hyperthermia, Induced* Immunotherapy / methods* Interleukin-2 / therapeutic use Magnetics Melanoma, Experimental / immunology Melanoma, Experimental / pathology Melanoma, Experimental / therapy* Mice Mice, Inbred C57BL Recombinant Proteins Survival Time Factors Tumor Cells, Cultured
IF 4.966
Times Cited 118
WOS Category ONCOLOGY
Resource
Human and Animal Cells B16 melanoma 4A5(RCB0557)