Lentivirus-based gene delivery works efficiently for the majority of mammalian cells cultured under standard two-dimensional conditions. By contrast, intestinal epithelial organoids embedded into threedimensional extracellular matrix appear to be resistant to lentiviral transduction. We observed that Matrigel, a matrix that reconstitutes a basement membrane and is indispensable for cell survival and proliferation, prevents lentiviruses from binding to intestinal cells. In this chapter, we describe a simple method of a highly efficient gene transduction into intestinal organoids. This method involves organoid dispersion into single intestinal epithelial cells, mixing these individual cells with lentiviral particles, plating on Matrigel, and subsequent re-embedding into Matrigel. Under these conditions, the majority of the cells are exposed to the virus in the absence of the matrix barrier while remaining attached to the matrix. Using a GFPlabeled lentivirus, we demonstrate that this method allows for highly efficient infection of intestinal organoids after overnight incubation of Matrigel-attached cells with lentiviral particles.
CITATION STYLE
Maru, Y., Orihashi, K., & Hippo, Y. (2016). Lentivirus-based stable gene delivery into intestinal organoids. Methods in Molecular Biology, 1422, 13–21. https://doi.org/10.1007/978-1-4939-3603-8_2
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