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See 1 citation in World J Gastroenterol 2011:

World J Gastroenterol. 2011 Dec 28;17(48):5260-6. doi: 10.3748/wjg.v17.i48.5260.

Hepatocellular carcinoma-specific immunotherapy with synthesized α1,3- galactosyl epitope-pulsed dendritic cells and cytokine-induced killer cells.

Author information

1
The First Teaching Hospital, Inner Mongolia Medical College, Huhhot 010050, Inner Mongolia Autonomous Region, China.

Abstract

AIM:

To evaluate the safety and clinical efficacy of a new immunotherapy using both α-Gal epitope-pulsed dendritic cells (DCs) and cytokine-induced killer cells.

METHODS:

Freshly collected hepatocellular carcinoma (HCC) tumor tissues were incubated with a mixture of neuraminidase and recombinant α1,3-galactosyltransferase (α1,3GT) to synthesize α-Gal epitopes on carbohydrate chains of the glycoproteins of tumor membranes. The subsequent incubation of the processed membranes in the presence of human natural anti-Gal IgG resulted in the effective phagocytosis to the tumor membrane by DCs. Eighteen patients aged 38-78 years with stage III primary HCC were randomLy chosen for the study; 9 patients served as controls, and 9 patients were enrolled in the study group.

RESULTS:

The evaluation demonstrated that the procedure was safe; no serious side effects or autoimmune diseases were observed. The therapy significantly prolonged the survival of treated patients as compared with the controls (17.1 ± 2.01 mo vs 10.1 ± 4.5 mo, P = 0.00121). After treatment, all patients in the study group had positive delayed hypersensitivity and robust systemic cytotoxicity in response to tumor lysate as measured by interferon-γ-expression in peripheral blood mononuclear cells using enzyme-linked immunosorbent spot assay. They also displayed increased numbers of CD8-, CD45RO- and CD56-positive cells in the peripheral blood and decreased α-fetoprotein level in the serum.

CONCLUSION:

This new tumor-specific immunotherapy is safe, effective and has a great potential for the treatment of tumors.

KEYWORDS:

Dendritic cell; Dendritic cell-activated cytokine-induced killer cell; Hepatocellular carcinoma; Tumor-associated antigen; α-Gal epitope

PMID:
22219594
PMCID:
PMC3247689
DOI:
10.3748/wjg.v17.i48.5260
[Indexed for MEDLINE]
Free PMC Article

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