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PRT939 is a selective inhibitor of histone deacetylase 6 (HDAC6), a member of the histone deacetylase family of enzymes involved in epigenetic regulation. Developed by Prothena Biosciences, it is an oral small molecule designed to modulate HDAC6 activity, which plays a role in protein trafficking, immune cell function, and tumor microenvironment regulation, potentially offering therapeutic benefits in oncology and other indications through hyperacetylation of tubulin and disruption of aggresome pathways.
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