Systemic delivery of RafsiRNA using cationic cardiolipin liposomes silences Raf-1 expression and inhibits tumor growth in xenograft model of human prostate cancer

Ajai Pal, Ateeq Ahmad, Sumsullah Khan, Isamu Sakabe, Chuanbo Zhang, Usha N. Kasid, Imran Ahmad

International Journal of Oncology · 2005 · 103 citations · 0 references

Concepts

Abstract

Raf-1, a protein serine-threonine kinase, plays a critical role in mitogen-activated protein kinase kinase (MKK/MEK)- mitogen-activated protein kinase (extracellular signal-regulated kinase) (MAPK/ERK) pathways. We show here that systemically delivered novel cationic cardiolipin liposomes (NeoPhectin-AT) containing a small interfering RNA (siRNA) against Raf-1 silence the expression of Raf-1 in tumor tissues and inhibit tumor growth in xenograft model of human prostate cancer. The knockdown of Raf-1 expression by siRNA is also associated with down-regulation of cyclin D1 expression in vivo.