Concurrent Targeting of HDAC and PI3K to Overcome Phenotypic Heterogeneity of Castration-resistant and Neuroendocrine Prostate Cancers

同时靶向 HDAC 和 PI3K 以克服去势抵抗性和神经内分泌前列腺癌的表型异质性

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作者:Ailin Zhang #, Nathan A Lau #, Alicia Wong, Lisha G Brown, Ilsa M Coleman, Navonil De Sarkar, Dapei Li, Diana C DeLucia, Mark P Labrecque, Holly M Nguyen, Jennifer L Conner, Ruth F Dumpit, Lawrence D True, Daniel W Lin, Eva Corey, Joshi J Alumkal, Peter S Nelson, Colm Morrissey, John K Lee

Significance

CRPC is a heterogeneous disease constituting multiple phenotypic subtypes that often co-occur within tumors or across metastases in patients. Existing targeted therapies for CRPC do not take this into account. Here we show that fimepinostat, a dual HDAC1/2 and PI3K/AKT inhibitor investigated clinically in other cancer types but not prostate cancer, may overcome this heterogeneity by effectively inhibiting both ARPC and NEPC subtypes of CRPC.

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