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Updated: Nov 21, 2025

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
The role of JMJD6/U2AF65/AR-V7 axis in castration-resistant prostate cancer progression
1Department of Urology, Daping Hospital, Army Medical University, Chongqing, People's Republic of China. tongdali1985@163.com.
Abstract:
Castration-resistant prostate cancer (CRPC) remains prostate cancer research and treatment bottleneck. Abnormal androgen receptor (AR) activation still has a pivotal role in CRPC. Multiple mechanisms involve the process, of which overabundant AR-V7 mRNA splicing production is currently focused and increasingly studied. However, factually, there is no definite conclusion about regulation of AR-V7 mRNA splicing. Recently developed knowledge has demonstrated that JMJD6 and U2AF65 as a hopeful approach in mRNA splicing regulation. The authors propose a novel possible mechanism elucidating AR mRNA splicing for CRPC progression using dual-function enzyme JMJD6 and its induced JMJD6/U2AF65/AR-V7 axis. In this hypothesis JMJD6 introduces to AR promoter to demethylate H3R or H4R and promotes AR mRNA transcription via its demethylase activity and interaction with U2AF65. It is expected that JMJD6 could further effectively perform U2AF65 hydroxylation to achieve AR-V7 mRNA splicing via its hydroxylase activity.
Insights
JMJD6 enzyme promotes androgen receptor (AR) transcription and AR-V7 splicing in castration-resistant prostate cancer (CRPC) via a novel JMJD6/U2AF65/AR-V7 axis, offering new therapeutic targets.
Area of Science:
- Oncology
- Molecular Biology
- Epigenetics
Background:
- Castration-resistant prostate cancer (CRPC) is a major challenge in prostate cancer treatment.
- Abnormal androgen receptor (AR) activation, particularly AR-V7 splicing, is a key driver in CRPC progression.
- The precise regulation of AR-V7 mRNA splicing remains incompletely understood.
Purpose of the Study:
- To propose a novel mechanism for AR mRNA splicing in CRPC progression.
- To elucidate the role of the dual-function enzyme JMJD6 in regulating AR mRNA transcription and splicing.
- To investigate the potential JMJD6/U2AF65/AR-V7 axis in CRPC.
Main Methods:
- Hypothesis-driven research exploring enzyme functions in mRNA regulation.
- Focus on JMJD6's demethylase and hydroxylase activities.
- Investigation of JMJD6's interaction with U2AF65 and the AR gene.
Main Results:
- JMJD6 is hypothesized to promote AR mRNA transcription via demethylation of H3R/H4R at the AR promoter.
- JMJD6 is proposed to interact with U2AF65, facilitating AR-V7 splicing through its hydroxylase activity.
- The novel JMJD6/U2AF65/AR-V7 axis is implicated in CRPC progression.
Conclusions:
- JMJD6 plays a potential dual role in both AR transcription and AR-V7 splicing.
- The proposed JMJD6/U2AF65/AR-V7 axis offers a new perspective on CRPC pathogenesis.
- Targeting JMJD6 may represent a novel therapeutic strategy for CRPC.
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