Steven Arns

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The cysteine protease ATG4B plays a role in key steps of the autophagy process and is of interest as a potential therapeutic target. At an early step, ATG4B cleaves proLC3 isoforms to form LC3-I for subsequent lipidation to form LC3-II and autophagosome membrane insertion. ATG4B also cleaves phosphatidylethanolamine (PE) from LC3-II to regenerate LC3-I,(More)
The in vivo hydrolytic pathway of a dual-function bone-targeting EP4 receptor agonist-bisphosphonate pro-drug was deduced from radiolabeling experiments. A (14)C labeled pro-drug was used to monitor liberation of the bisphosphonate and results were compared to parallel studies where the EP4 receptor agonist was labeled with (3)H. The bone-adsorption of the(More)
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