Open Access

The (pro)renin receptor mediates constitutive PLZF-independent pro-proliferative effects which are inhibited by bafilomycin but not genistein

  • Authors:
    • Sebastian Kirsch
    • Eva Schrezenmeier
    • Sabrina Klare
    • Daniela Zaade
    • Kerstin Seidel
    • Jennifer Schmitz
    • Sarah Bernhard
    • Dilyara Lauer
    • Mark Slack
    • Petra Goldin-Lang
    • Thomas Unger
    • Frank S. Zollmann
    • Heiko Funke-Kaiser
  • View Affiliations

  • Published online on: January 14, 2014     https://doi.org/10.3892/ijmm.2014.1624
  • Pages: 795-808
  • Copyright: © Kirsch et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

The (pro)renin receptor [(P)RR] is crucial for cardio-renal pathophysiology. The distinct molecular mechanisms of this receptor are still incompletely understood. The (P)RR is able to interact with different signalling proteins such as promyelocytic leukemia zinc finger protein (PLZF) and Wnt receptors. Moreover, domains of the (P)RR are essential for V-ATPase activity. V-ATPase- and Wnt-mediated effects imply constitutive, i.e., (pro)renin-independent functions of the (P)RR. Regarding ligand-dependent (P)RR signalling, the role of prorenin glycosylation is currently unknown. Therefore, the aim of this study was to analyse the contribution of constitutive (P)RR activity to its cellular effects and the relevance of prorenin glycosylation on its ligand activity. We were able to demonstrate that high glucose induces (P)RR signal transduction whereas deglycosylation of prorenin abolishes its intrinsic activity in neuronal and epithelial cells. By using siRNA against (P)RR or PLZF as well as the PLZF translocation blocker genistein and the specific V-ATPase inhibitor bafilomycin, we were able to dissect three distinct sub-pathways downstream of the (P)RR. The V-ATPase function is ligand-independently associated with strong pro-proliferative effects whereas prorenin causes moderate proliferation in vitro. In contrast, PLZF per se [i.e., in the absence of (pro)renin] does not interfere with cell number.
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2014-April
Volume 33 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Kirsch S, Schrezenmeier E, Klare S, Zaade D, Seidel K, Schmitz J, Bernhard S, Lauer D, Slack M, Goldin-Lang P, Goldin-Lang P, et al: The (pro)renin receptor mediates constitutive PLZF-independent pro-proliferative effects which are inhibited by bafilomycin but not genistein. Int J Mol Med 33: 795-808, 2014
APA
Kirsch, S., Schrezenmeier, E., Klare, S., Zaade, D., Seidel, K., Schmitz, J. ... Funke-Kaiser, H. (2014). The (pro)renin receptor mediates constitutive PLZF-independent pro-proliferative effects which are inhibited by bafilomycin but not genistein. International Journal of Molecular Medicine, 33, 795-808. https://doi.org/10.3892/ijmm.2014.1624
MLA
Kirsch, S., Schrezenmeier, E., Klare, S., Zaade, D., Seidel, K., Schmitz, J., Bernhard, S., Lauer, D., Slack, M., Goldin-Lang, P., Unger, T., Zollmann, F. S., Funke-Kaiser, H."The (pro)renin receptor mediates constitutive PLZF-independent pro-proliferative effects which are inhibited by bafilomycin but not genistein". International Journal of Molecular Medicine 33.4 (2014): 795-808.
Chicago
Kirsch, S., Schrezenmeier, E., Klare, S., Zaade, D., Seidel, K., Schmitz, J., Bernhard, S., Lauer, D., Slack, M., Goldin-Lang, P., Unger, T., Zollmann, F. S., Funke-Kaiser, H."The (pro)renin receptor mediates constitutive PLZF-independent pro-proliferative effects which are inhibited by bafilomycin but not genistein". International Journal of Molecular Medicine 33, no. 4 (2014): 795-808. https://doi.org/10.3892/ijmm.2014.1624