Antiangiogenesis and damaging blood flow by antisense vascular endothelial growth factor oligodeoxynucleotides to suppress lung cancers

Tumour Biology : the Journal of the International Society for Oncodevelopmental Biology and Medicine
Chunyan LiXueying Sun

Abstract

Angiogenesis plays a key role in the growth and metastasis of lung cancers, and vascular endothelial growth factor (VEGF) is one of the major angiogenic factors. The study aims to investigate whether phosphoro thioate-modified antisense VEGF oligodeoxynucleo tides (ASODN) formulated in cationic liposome could inhibit the growth of Lewis lung carcinoma (LLC) tumors by antiangiogenesis. The study demonstrated that ASODN downregulated the expression of VEGF in LLC cells at levels of protein and mRNA in vitro and in vivo. The conditioned media obtained from LLC cells treated with ASODN significantly inhibited the proliferation of bovine aortic endothelial cells. The ASODN therapy significantly suppressed the growth of established subcutaneous LLC tumors in mice by inhibiting angiogenesis and damaging the blood flow of tumors. In conclusion, our results suggest that ASODN targeting VEGF presents a potent therapeutic strategy to combat lung cancers.

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Citations

Dec 10, 2009·Molecular Aspects of Medicine·Danielle Park, Pierre J Dilda
Jan 20, 2007·Molecular Therapy : the Journal of the American Society of Gene Therapy·Satoshi InoueRajagopal Ramesh

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