A single lentiviral vector platform for microRNA-based conditional RNA interference and coordinated transgene expression.

@article{citeulike:921547, abstract = {RNAi is proving to be a powerful experimental tool for the functional annotation of mammalian genomes. The full potential of this technology will be realized through development of approaches permitting regulated manipulation of endogenous gene expression with coordinated reexpression of exogenous transgenes. We describe the development of a lentiviral vector platform, pSLIK (single lentivector for inducible knockdown), which permits tetracycline-regulated expression of microRNA-like short hairpin RNAs from a single viral infection of any na\"{i}ve cell system. In mouse embryonic fibroblasts, the pSLIK platform was used to conditionally deplete the expression of the heterotrimeric G proteins Galpha12 and Galpha13 both singly and in combination, demonstrating the Galpha13 dependence of serum response element-mediated transcription. In RAW264.7 macrophages, regulated knockdown of Gbeta2 correlated with a reduced Ca(2+) response to C5a. Insertion of a GFP transgene upstream of the Gbeta2 microRNA-like short hairpin RNA allowed concomitant reexpression of a heterologous mRNA during tetracycline-dependent target gene knockdown, significantly enhancing the experimental applicability of the pSLIK system.}, address = {Alliance for Cell Signaling Molecular Biology Laboratory, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.}, author = {Shin, K. J. and Wall, E. A. and Zavzavadjian, J. R. and Santat, L. A. and Liu, J. and Hwang, J. I. and Rebres, R. and Roach, T. and Seaman, W. and Simon, M. I. and Fraser, I. D. }, citeulike-article-id = {921547}, doi = {10.1073/pnas.0606179103}, issn = {0027-8424}, journal = {Proc Natl Acad Sci U S A}, keywords = {expression, lentivirus, mirna, pslik}, month = {September}, number = {37}, pages = {13759--13764}, posted-at = {2008-05-05 09:34:16}, priority = {2}, title = {A single lentiviral vector platform for microRNA-based conditional RNA interference and coordinated transgene expression.}, url = {http://dx.doi.org/10.1073/pnas.0606179103}, volume = {103}, year = {2006} }

TY - JOUR ID - citeulike:921547 L3 - citeulike-article-id:921547 TI - A single lentiviral vector platform for microRNA-based conditional RNA interference and coordinated transgene expression. JF - Proc Natl Acad Sci U S A VL - 103 IS - 37 SP - 13759 EP - 13764 AD - Alliance for Cell Signaling Molecular Biology Laboratory, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA. SN - 0027-8424 N2 - RNAi is proving to be a powerful experimental tool for the functional annotation of mammalian genomes. The full potential of this technology will be realized through development of approaches permitting regulated manipulation of endogenous gene expression with coordinated reexpression of exogenous transgenes. We describe the development of a lentiviral vector platform, pSLIK (single lentivector for inducible knockdown), which permits tetracycline-regulated expression of microRNA-like short hairpin RNAs from a single viral infection of any naïve cell system. In mouse embryonic fibroblasts, the pSLIK platform was used to conditionally deplete the expression of the heterotrimeric G proteins Galpha12 and Galpha13 both singly and in combination, demonstrating the Galpha13 dependence of serum response element-mediated transcription. In RAW264.7 macrophages, regulated knockdown of Gbeta2 correlated with a reduced Ca(2+) response to C5a. Insertion of a GFP transgene upstream of the Gbeta2 microRNA-like short hairpin RNA allowed concomitant reexpression of a heterologous mRNA during tetracycline-dependent target gene knockdown, significantly enhancing the experimental applicability of the pSLIK system. KW - expression KW - lentivirus KW - mirna KW - pslik AU - Shin, KJ AU - Wall, EA AU - Zavzavadjian, JR AU - Santat, LA AU - Liu, J AU - Hwang, JI AU - Rebres, R AU - Roach, T AU - Seaman, W AU - Simon, MI AU - Fraser, ID PY - 2006/09/12/ UR - http://dx.doi.org/10.1073/pnas.0606179103 ER -