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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Inhibition of murine K-BALB and CT26 tumour growth using a Semliki Forest virus vector with enhanced expression of IL-18.

The enhanced Semliki Forest virus vector (SFV10-E), an RNA-based suicide expression vector system, expresses foreign genes at levels up to 10x higher than the original SFV10 vector. This vector has been used previously to express interleukin-12 for a tumour treatment study in a BALB/c murine model. Interleukin-18, an IFN-gamma-inducing cytokine, plays a key role in the early induction of T helper1 ( Th1) cell-mediated immune responses in addition to anti-angiogenic activity. In this study, the murine IL-18 gene along with an Ig-kappa leader sequence was cloned into the SFV10-E vector. The pSFV10-E-IL-18 construct was characterised in vitro for levels of expression and secretion, and the production of biologically active IL-18 was confirmed. An in vivo tumour treatment study using high titre rSFV10-E-IL-18 virus-like particles to treat subcutaneous K-BALB and CT26 tumours in BALB/c mice demonstrated therapeutic efficacy including the disappearance of tumour cells in a minority of treated animals. Tumour regression was associated with induction of avascular and suppurative necrosis.[1]

References

  1. Inhibition of murine K-BALB and CT26 tumour growth using a Semliki Forest virus vector with enhanced expression of IL-18. Chikkanna-Gowda, C.P., McNally, S., Sheahan, B.J., Fleeton, M.N., Atkins, G.J. Oncol. Rep. (2006) [Pubmed]
 
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