The Expression of YAP1 is Increased in High-Grade Prostatic Adenocarcinoma but is Reduced in Neuroendocrine Prostate Cancer
bioRxiv (Cold Spring Harbor Laboratory)(2019)
摘要
Background After long-term androgen deprivation therapy, 25-30% prostate cancer (PCa) acquires an aggressive neuroendocrine (NE) phenotype. Dysregulation of YAP1, a key transcription coactivator of the Hippo pathway, has been related to cancer progression. However, its role in neuroendocrine prostate cancer (NEPC) has not been assessed. Methods Immunohistochemistry and bioinformatics analysis were conducted to evaluate YAP1 expression levels during PCa initiation and progression. Results YAP1 expression was present in the basal epithelial cells in benign prostatic tissues, lost in low-grade PCa, but elevated in high-grade prostate adenocarcinomas. Interestingly, the expression of YAP1 was reduced/lost in both human and mouse NEPC. Conclusions The expression of YAP1 is elevated in high-grade prostate adenocarcinomas but lost in NEPC.
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关键词
Prostate Cancer
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