Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer

Neuroendocrine prostate cancer (NEPC) is the most lethal malignancy of prostate cancer (PCa). Treatment with next-generation androgen receptor (AR) pathway inhibitors (ARPIs) has successfully extended patients' lifespan. However, with the emergence of drug resistance, PCa tumors increasingly ad...

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Main Authors: Wen-Chi Cheng, Hung-Jung Wang
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2021-01-01
Series:Tzu-Chi Medical Journal
Subjects:
Online Access:http://www.tcmjmed.com/article.asp?issn=1016-3190;year=2021;volume=33;issue=3;spage=224;epage=232;aulast=Cheng
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author Wen-Chi Cheng
Hung-Jung Wang
author_facet Wen-Chi Cheng
Hung-Jung Wang
author_sort Wen-Chi Cheng
collection DOAJ
description Neuroendocrine prostate cancer (NEPC) is the most lethal malignancy of prostate cancer (PCa). Treatment with next-generation androgen receptor (AR) pathway inhibitors (ARPIs) has successfully extended patients' lifespan. However, with the emergence of drug resistance, PCa tumors increasingly adapt to potent ARPI therapies by transitioning to alternative cellular lineage. Such therapy-induced drug resistance is largely driven from the cellular plasticity of PCa cells to alter their phenotypes of AR independence for cell growth and survival. Some of the resistant PCa cells undergo cellular reprogramming to form neuroendocrine phenotypes. Recent evidences suggest that this cellular reprogramming or the lineage plasticity is driven by dysregulation of the epigenome and transcriptional networks. Aberrant DNA methylation and altered expression of epigenetic modifiers, such as enhancer of zeste-homolog 2, transcription factors, histone demethylases, are hallmarks of NEPC. In this review, we discuss the nature of the epigenetic and transcriptional landscapes of PCa cells which lose their AR independence and transition to the neuroendocrine lineage. We also discuss how oncogenic signaling and metabolic reprogramming fuel epigenetic and transcriptional alterations. In addition, the current state of epigenetic therapies for NEPC is addressed.
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spelling doaj.art-82a73e26ccf945179283b557c7fb88922022-12-21T18:33:17ZengWolters Kluwer Medknow PublicationsTzu-Chi Medical Journal1016-31902223-89562021-01-0133322423210.4103/tcmj.tcmj_220_20Current advances of targeting epigenetic modifications in neuroendocrine prostate cancerWen-Chi ChengHung-Jung WangNeuroendocrine prostate cancer (NEPC) is the most lethal malignancy of prostate cancer (PCa). Treatment with next-generation androgen receptor (AR) pathway inhibitors (ARPIs) has successfully extended patients' lifespan. However, with the emergence of drug resistance, PCa tumors increasingly adapt to potent ARPI therapies by transitioning to alternative cellular lineage. Such therapy-induced drug resistance is largely driven from the cellular plasticity of PCa cells to alter their phenotypes of AR independence for cell growth and survival. Some of the resistant PCa cells undergo cellular reprogramming to form neuroendocrine phenotypes. Recent evidences suggest that this cellular reprogramming or the lineage plasticity is driven by dysregulation of the epigenome and transcriptional networks. Aberrant DNA methylation and altered expression of epigenetic modifiers, such as enhancer of zeste-homolog 2, transcription factors, histone demethylases, are hallmarks of NEPC. In this review, we discuss the nature of the epigenetic and transcriptional landscapes of PCa cells which lose their AR independence and transition to the neuroendocrine lineage. We also discuss how oncogenic signaling and metabolic reprogramming fuel epigenetic and transcriptional alterations. In addition, the current state of epigenetic therapies for NEPC is addressed.http://www.tcmjmed.com/article.asp?issn=1016-3190;year=2021;volume=33;issue=3;spage=224;epage=232;aulast=Chengandrogen receptorenhancer of zeste-homolog 2epigeneticneuroendocrine prostate cancer
spellingShingle Wen-Chi Cheng
Hung-Jung Wang
Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
Tzu-Chi Medical Journal
androgen receptor
enhancer of zeste-homolog 2
epigenetic
neuroendocrine prostate cancer
title Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
title_full Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
title_fullStr Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
title_full_unstemmed Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
title_short Current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
title_sort current advances of targeting epigenetic modifications in neuroendocrine prostate cancer
topic androgen receptor
enhancer of zeste-homolog 2
epigenetic
neuroendocrine prostate cancer
url http://www.tcmjmed.com/article.asp?issn=1016-3190;year=2021;volume=33;issue=3;spage=224;epage=232;aulast=Cheng
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AT hungjungwang currentadvancesoftargetingepigeneticmodificationsinneuroendocrineprostatecancer