Marcus J G W Ladds, Andrés Pastor-Fernández, Gergana Popova, Ingeborg M M van Leeuwen, Kai Er Eng, Catherine J Drummond, Lars Johansson, Richard Svensson, Nicholas J Westwood, Anna R McCarthy, Fredrik Tholander, Mihaela Popa, David P Lane, Emmet McCormack, Gerald M McInerney, Ravi Bhatia, Sonia Laín
Tenovin-6 is the most studied member of a family of small molecules with antitumour activity in vivo. Previously, it has been determined that part of the effects of tenovin-6 associate with its ability to inhibit SirT1 and activate p53. However, tenovin-6 has also been shown to modulate autophagic flux. Here we show that blockage of autophagic flux occurs in a variety of cell lines in response to certain tenovins, that autophagy blockage occurs regardless of the effect of tenovins on SirT1 or p53, and that this blockage is dependent on the aliphatic tertiary amine side chain of these molecules...
2018: PloS One