Growth suppression and immunogenicity enhancement of Hep-2 or primary laryngeal cancer cells by adenovirus-mediated co-transfer of human wild-type p53, granulocyte-macrophage colony-stimulating factor and B7-1 genes.

Abstract:

:Co-transfer of immunomodulatory and antiproliferative genes may be the basis for new strategies to potentiate tumor regression. In this study, we evaluated the in vitro effect of the introduction of human wild-type p53, granulocyte-macrophage colony-stimulating factor (GM-CSF), and B7-1 genes via recombinant adenovirus on the growth and immunogenicity of Hep-2 or primary laryngeal cancer cells. By the introduction of wild-type p53 gene, the growth of Hep-2 cells was inhibited via enhanced apoptosis. By the introduction of GM-CSF and B7-1 genes, the immunogenicity of cancer cells was enhanced. Significant proliferation of tumor infiltrating lymphocytes (TILs) and tumor-specific cytotoxicity of cytotoxic T lymphocytes (CTLs) were induced in vitro. Furthermore, the combinative effect of GM-CSF and B7-1 was even more evident than that of any one of them singly. These results suggest that the co-transfer of human wild-type p53, GM-CSF and B7-1 genes into tumor cells via recombinant adenovirus may be further developed into a potential combination gene therapy strategy for cancer.

journal_name

Cancer Lett

journal_title

Cancer letters

authors

Qiu ZH,Wu CT,Lao MF,Pan LZ,Li YM

doi

10.1016/s0304-3835(02)00089-7

keywords:

subject

Has Abstract

pub_date

2002-08-28 00:00:00

pages

147-54

issue

2

eissn

0304-3835

issn

1872-7980

pii

S0304383502000897

journal_volume

182

pub_type

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