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Biguanide-PROTACs: Modulating Mitochondrial Proteins in Pancreatic Cancer Cells

Vatte, J.; Bourdeau, V.; Ferbeyre, G.; Schmitzer, A.

2024-03-19 cancer biology
10.1101/2024.03.17.585436 bioRxiv
Show abstract

This study focuses on the synthesis of Biguanide-PROTACs, formed by conjugating the biguanide motif with diverse E3 enzyme ligands and spacers. Evaluation of their activity on pancreatic cancer cell (KP4) proliferation established a correlation between membrane permeability and median effective concentration. Mechanistic insights revealed that only two compounds exhibited biguanide-like AMPK activation, while only one hydrophobic compound uniquely altered mitochondrial protein levels. The prospect of developing and expanding the Biguanide-PROTAC library holds promises, offering potential insights into biguanide mechanisms and the creation of more potent anticancer agents. This study contributes to understanding the intricate interplay between compound structure, permeability, and anticancer activity, paving the way for targeted drug development in pancreatic cancer treatment.

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