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Updated: Jan 29, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Targeting androgen receptor-independent pathways in therapy-resistant prostate cancer
Lingfan Xu1,2, Junyi Chen3, Weipeng Liu4
1Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
Abstract:
Since androgen receptor (AR) signaling is critically required for the development of prostate cancer (PCa), targeting AR axis has been the standard treatment of choice for advanced and metastatic PCa. Unfortunately, although the tumor initially responds to the therapy, treatment resistance eventually develops and the disease will progress. It is therefore imperative to identify the mechanisms of therapeutic resistance and novel molecular targets that are independent of AR signaling. Recent advances in pathology, molecular biology, genetics and genomics research have revealed novel AR-independent pathways that contribute to PCa carcinogenesis and progression. They include neuroendocrine differentiation, cell metabolism, DNA damage repair pathways and immune-mediated mechanisms. The development of novel agents targeting the non-AR mechanisms holds great promise to treat PCa that does not respond to AR-targeted therapies.
Insights
Androgen receptor (AR) targeted therapies are standard for prostate cancer (PCa), but resistance develops. Identifying AR-independent pathways is crucial for developing new treatments for advanced PCa.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Androgen receptor (AR) signaling is essential for prostate cancer (PCa) development and progression.
- Current AR-targeted therapies are effective initially but often lead to treatment resistance in advanced and metastatic PCa.
Purpose of the Study:
- To identify mechanisms of therapeutic resistance in PCa.
- To discover novel molecular targets independent of AR signaling for improved PCa treatment.
Main Methods:
- Review of recent advances in pathology, molecular biology, genetics, and genomics research.
- Analysis of AR-independent pathways implicated in PCa carcinogenesis and progression.
Main Results:
- Identified several AR-independent pathways contributing to PCa: neuroendocrine differentiation, cell metabolism, DNA damage repair, and immune mechanisms.
- These pathways represent potential targets for novel therapeutic strategies.
Conclusions:
- Targeting AR-independent mechanisms offers a promising approach to treat PCa unresponsive to standard AR-targeted therapies.
- Further research into these pathways can lead to the development of more effective treatments for advanced prostate cancer.
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