Abstract
The study of post-transcriptional regulation is constrained by the technical limitations associated with both transient and stable transfection of chimeric reporter plasmids examining the activity of 3′-UTR cis-acting elements. We report the adaptation of a commercially available system that enables consistent stable integration of chimeric reporter cDNA into a single genomic site in which transcription is induced by tetracycline. Using this system, we demonstrate the tight control afforded by this system and its suitability in mapping the regulatory function of defined cis-acting elements in the human TNF 3′-UTR, as well as the distinct effects of serum starvation on transiently transfected and stably integrated chimeric reporter genes.
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Acknowledgments
This work was supported by the National Institutes of Health (R01AR49834), the COBRE Program (P20RR16437) from of the National Center for Research Resources, the American College of Rheumatology Research and Education "Within Our Reach" program (awarded to W.F.C.R.), the Veterans Administration (Merit Review to R.C.N. and S.A.B.). J.B. was supported by a Resident Research Preceptorship Award from the American College of Rheumatology, Research Education Foundation. M.Z was supported by a NIH training grant T32 AI00736), and a Hitchcock Foundation grant. The authors thank Abigail Fellows for assistance in preparation of the manuscript, and for technical assistance. Drs. Nichols, Botson, and Wang contributed equally to this manuscript. This paper is subject to the NIH Public Access Policy.
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Nichols, R.C., Botson, J., Wang, X.W. et al. A Flexible Approach to Studying Post-Transcriptional Gene Regulation in Stably Transfected Mammalian Cells. Mol Biotechnol 48, 210–217 (2011). https://doi.org/10.1007/s12033-010-9360-8
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DOI: https://doi.org/10.1007/s12033-010-9360-8