Abstract
Tubulin, the main component of microtubules, is a major target for antitumor drugs such as vinblastine. We have recently discovered that the βII isotype of tubulin is present in the nuclei of cultured rat kidney mesangial cells, smooth-muscle-like cells present in the renal glomerular mesangium (Walss C, Kreisberg JI, Ludueña RF: Cell Motil Cytoskeleton 42: 274–284, 1999). Here, we have investigated the effect of vinblastine on nuclear βII-tubulin in these cells. We have found that, at concentrations of 15 nM and higher, vinblastine caused a reversible loss of βII-tubulin from the nucleus. Our results raise the possibility that nuclear βII-tubulin constitutes a population of tubulin that could be a novel target for antitumor drugs such as vinblastine.
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Walss-Bass, C., Kreisberg, J.I. & Ludueña, R.F. Effect of the Antitumor Drug Vinblastine on Nuclear βII-tubulin in Cultured Rat Kidney Mesangial Cells. Invest New Drugs 21, 15–20 (2003). https://doi.org/10.1023/A:1022947706151
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DOI: https://doi.org/10.1023/A:1022947706151