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Updated: Jul 5, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Mechanisms of prostate cancer progression to androgen independence
1Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX 75390-8857, USA. michael.mcphaul@utsouthwestern.edu
Abstract:
Prostate cancer is a major health problem in the United States and worldwide. In 2007, more than 27,000 men were estimated to have died from prostate cancer in the United States alone. Although important advances have been made in the diagnosis and treatment of prostate cancer, therapies focused on the removal or inhibition of androgen action remain the most important components of therapy for individuals with metastatic disease. Despite the application of such modalities, the vast majority of patients with metastatic disease progress with a median survival of less than 2 years. A number of different mechanisms have been identified that may potentially contribute to the progression of prostate cancer. These insights suggest that signaling via the androgen receptor (AR) -- either via alternate signaling pathways impinging on the AR or through the in situ formation of androgens within progressive tumors -- is an important contributor to such progressive disease. It is anticipated that such mechanistic insights will lead to the development of useful new therapies in the future.
Insights
Prostate cancer remains a significant global health issue. Androgen receptor (AR) signaling, through various pathways or local androgen production, drives disease progression, indicating potential for new therapeutic strategies.
Area of Science:
- Oncology
- Urology
Background:
- Prostate cancer is a leading cause of cancer death in the United States and globally.
- Current treatments targeting androgen action are vital for metastatic prostate cancer but often lead to disease progression.
- The median survival for metastatic prostate cancer is less than 2 years despite therapeutic advances.
Purpose of the Study:
- To explore the mechanisms contributing to prostate cancer progression.
- To investigate the role of androgen receptor (AR) signaling in advanced prostate cancer.
- To identify potential targets for novel prostate cancer therapies.
Main Methods:
- Review of existing literature on prostate cancer progression.
- Analysis of signaling pathways involving the androgen receptor (AR).
- Investigation of androgen synthesis within tumors.
Main Results:
- Androgen receptor (AR) signaling is a key driver of prostate cancer progression.
- Alternate signaling pathways can influence AR activity.
- In situ formation of androgens within tumors contributes to disease advancement.
Conclusions:
- Understanding AR signaling mechanisms is crucial for combating prostate cancer.
- Targeting AR pathways or local androgen production may offer new therapeutic avenues.
- Further research into these mechanisms is expected to yield future treatments for progressive prostate cancer.
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