Acta Virologica Vol.63, No.2, p.162-168, 2019

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Acta Virologica Vol.63, No.2, p.162-168, 2019
Title: Characterization of liver specific promoters in a foamy viral vector pMD09
Author: A. K. SINGH, C. WEBER, A. VARSHNEY, S. GUPTA, S. N. KAZIM, M. G. SANAL, A. RETHWILM, S. K. SARIN

Abstract: Foamy viruses (FVs) or spumaviruses are retroviruses that are explored as vectors for gene therapy. The good feature of foamy viruses is its broad tropism; however, their infections result in non-targeted gene expression. Here, we attempted to design the liver targeted viral gene delivery by employing liver specific gene promoters like albumin (ALB), transthyretin (TTR) and hepatitis B virus (HBV) promoters. We compared the relative gene expression of liver specific promoters versus the U3 promoter in liver cell line (HepG2) and non-liver cell lines: human fibrosarcoma cell line (HT1080), baby hamster kidney cell line (BHK), human embryonic kidney cell line (HEK 293T) and cervical cancer cell line (HeLa). We have found that the promoter exchange didn't affect viral assembly. The ability to drive gene expression was best with TTR promoter which was followed by HBV and ALB promoter. The use of TTR, HBV and ALB promoters are helpful in achieving liver specific gene expression.

Keywords: foamy virus; gene therapy; liver; albumin; transthyretin promoter; HBV promoter
	Published online: 03-May-2019
Year: 2019, Volume: 63, Issue: 2	Page From: 162, Page To: 168
doi:10.4149/av_2019_207
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