Korean J Otolaryngol-Head Neck Surg.  2000 Feb;43(2):179-187.

The Anti-tumor Effect of Adoptive Immunotherapy with Dendritic Cells Cultured from the Bone Marrow in a Murine Squamous Cell Carcinoma Model

• Son YI
• Kim KH
• Sung MW
• Beak CH
• Chung SK
• Chu KC
• Seo IS

Abstract

BACKGROUND AND OBJECTIVES
It is known that patients with malignant tumor often have depressed antitumor immunity. Much information has been generated about a biologically-based therapy, which can induce or activate antitumor cytotoxic T lymphocytes (CTL) capable of recognizing the antigens associated with the major histocompatibility complex molecules (MHC). Optimal induction of CTL seems to require contact with antigenic peptides presented by antigen presenting cell (APC). Dendritic cells (DC) are currently considered to be the most effective and professional APC.
MATERIALS AND METHODS
With an injection of SCC cells (1x105) to the back of C3H mouse, a consistent and immunocompetent experimental animal tumor model was achieved. DCs were successfully cultured from the bone marrow of C3H mouse, and phenotypically they expressed high levels of co-stimulatory molecules and abundant MHC. Cultured DCs were intraperitoneally injected into the tumor-established mouse.
RESULTS
In the treated group, tumor sizes were smaller, infiltration to the adjacent structures were limited. T cells extracted from the spleen of the treated group showed better proliferative and cytolytic activity toward tumor cells. The results of this study suggest that DCs have an effect to suppress the growth of tumors and to induce higher T cell reactivity toward tumor cells.
CONCLUSION
These results may help in proceeding further immunologic approaches to reduce the morbidity and mortality in patients with the head and neck SCC.

Keyword

Immunotherapy of cancer; Dendritic cells; Squamous cell carcinoma

MeSH Terms

Animals
Bone Marrow*
Carcinoma, Squamous Cell*
Dendritic Cells*
Head
Humans
Immunotherapy, Adoptive*
Major Histocompatibility Complex
Mice
Mice, Inbred C3H
Mortality
Neck
Peptides
Spleen
T-Lymphocytes
T-Lymphocytes, Cytotoxic
Peptides