Tumor‐dendritic cell fusion as a basis for cancer immunotherapy

Autor: Jorgen Kjaergaard, Suyu Shu, Hide Kuriyama, Keiji Shimizu, Walter T. Lee, Hiro Tanaka
Rok vydání: 2005
Předmět:
Zdroj: Otolaryngology–Head and Neck Surgery. 132:755-764
ISSN: 1097-6817
0194-5998
DOI: 10.1016/j.otohns.2005.01.018
Popis: Objective To establish the basis for use of allogeneic dendritic-tumor fusion cells. Study design Fusion cells were created by electrofusion. We used 2 allogeneic murine tumor lines (D5 and 4T1) that were virally transduced to express the antigen (β-galactosidase) as a surrogate tumor marker. Results Cross-immunization was achieved with irradiated allogenic tumor cells. Successful electrofusion of dendritic cells and tumor cells was confirmed by using fluorescence-activated cell sorting and cytospin. Significant responses were shown in immunized mice against tumor challenge and established 3-day pulmonary metastasis with fusion cells. Conclusions Allogeneic tumor sharing a common tumor antigen can immunize against syngeneic tumor challenge. Fusion cells showed successful immunization against tumor challenge and showed regression of 3-day established pulmonary metastasis. Significance These preclinical studies provide evidence that an allogenic tumor-dendritic cell fusion vaccine is a valid approach for head and neck cancer immunotherapy.
Databáze: OpenAIRE