Spermine is a natural suppressor of AR signaling in castration-resistant prostate cancer.
AR-FL
AR-V7
CP: Cancer
CRPC
Metabolite
PRMT1
Spermine
Journal
Cell reports
ISSN: 2211-1247
Titre abrégé: Cell Rep
Pays: United States
ID NLM: 101573691
Informations de publication
Date de publication:
25 07 2023
25 07 2023
Historique:
received:
14
09
2022
revised:
04
04
2023
accepted:
26
06
2023
medline:
31
7
2023
pubmed:
15
7
2023
entrez:
15
7
2023
Statut:
ppublish
Résumé
In castration-resistant prostate cancer (CRPC), clinical response to androgen receptor (AR) antagonists is limited mainly due to AR-variants expression and restored AR signaling. The metabolite spermine is most abundant in prostate and it decreases as prostate cancer progresses, but its functions remain poorly understood. Here, we show spermine inhibits full-length androgen receptor (AR-FL) and androgen receptor splice variant 7 (AR-V7) signaling and suppresses CRPC cell proliferation by directly binding and inhibiting protein arginine methyltransferase PRMT1. Spermine reduces H4R3me2a modification at the AR locus and suppresses AR binding as well as H3K27ac modification levels at AR target genes. Spermine supplementation restrains CRPC growth in vivo. PRMT1 inhibition also suppresses AR-FL and AR-V7 signaling and reduces CRPC growth. Collectively, we demonstrate spermine as an anticancer metabolite by inhibiting PRMT1 to transcriptionally inhibit AR-FL and AR-V7 signaling in CRPC, and we indicate spermine and PRMT1 inhibition as powerful strategies overcoming limitations of current AR-based therapies in CRPC.
Identifiants
pubmed: 37453063
pii: S2211-1247(23)00809-4
doi: 10.1016/j.celrep.2023.112798
pii:
doi:
Substances chimiques
Receptors, Androgen
0
Spermine
2FZ7Y3VOQX
Androgen Receptor Antagonists
0
PRMT1 protein, human
EC 2.1.1.319
Protein-Arginine N-Methyltransferases
EC 2.1.1.319
Repressor Proteins
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
112798Informations de copyright
Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The authors declare no competing interests.