Syrosingopine sensitizes cancer cells to killing by metformin

We report that the anticancer activity of the widely used diabetic drug metformin is strongly potentiated by syrosingopine. Synthetic lethality elicited by combining the two drugs is synergistic and specific to transformed cells. This effect is unrelated to syrosingopine's known role as an inhi...

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Veröffentlicht in:Science advances 2016-12, Vol.2 (12), p.e1601756-e1601756
Hauptverfasser: Benjamin, Don, Colombi, Marco, Hindupur, Sravanth K, Betz, Charles, Lane, Heidi A, El-Shemerly, Mahmoud Y M, Lu, Min, Quagliata, Luca, Terracciano, Luigi, Moes, Suzette, Sharpe, Timothy, Wodnar-Filipowicz, Aleksandra, Moroni, Christoph, Hall, Michael N
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container_issue 12
container_start_page e1601756
container_title Science advances
container_volume 2
creator Benjamin, Don
Colombi, Marco
Hindupur, Sravanth K
Betz, Charles
Lane, Heidi A
El-Shemerly, Mahmoud Y M
Lu, Min
Quagliata, Luca
Terracciano, Luigi
Moes, Suzette
Sharpe, Timothy
Wodnar-Filipowicz, Aleksandra
Moroni, Christoph
Hall, Michael N
description We report that the anticancer activity of the widely used diabetic drug metformin is strongly potentiated by syrosingopine. Synthetic lethality elicited by combining the two drugs is synergistic and specific to transformed cells. This effect is unrelated to syrosingopine's known role as an inhibitor of the vesicular monoamine transporters. Syrosingopine binds to the glycolytic enzyme α-enolase in vitro, and the expression of the γ-enolase isoform correlates with nonresponsiveness to the drug combination. Syrosingopine sensitized cancer cells to metformin and its more potent derivative phenformin far below the individual toxic threshold of each compound. Thus, combining syrosingopine and codrugs is a promising therapeutic strategy for clinical application for the treatment of cancer.
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SciAdv r-articles
title Syrosingopine sensitizes cancer cells to killing by metformin
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