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Generation of Prostate Cancer Patient Derived Xenograft Models from Circulating Tumor Cells
Published on: October 20, 2015
Emerging therapeutic targets for patients with advanced prostate cancer
Fred Saad1, Neal Shore2, Tian Zhang3
1Centre Hospitalier de l'Université de Montréal/CRCHUM, Montréal, Quebec, Canada.
Abstract:
Although recent advances in the treatment of castration-resistant prostate cancer (CRPC) have significantly improved patient outcomes, advanced prostate cancer is still associated with substantial morbidity and mortality, particularly in patients who develop resistance after multiple lines of therapy. Various cell signaling, DNA repair, and epigenetic enzymatic pathways are being targeted with small-molecule inhibitors in order to identify treatment strategies for patients with CRPC. In this review, we discuss novel targets and agents, studied preclinically and now being validated in clinical trials, including poly ADP-ribose polymerase (PARP), enhancer of zeste homologue 2 (EZH2), hedgehog pathway, MDM2/p53, and tyrosine kinase inhibitors. Further, we outline current approaches for novel prostate cancer vaccines such as DCVAC/PCa, PROSTVAC-V/F, MVI-816, CV9104, and PF-06753512. This wide spectrum of potential treatment strategies holds promise for additional improvements in the treatment of patients with CRPC, as these novel agents are aimed at targets known to be associated with growth and malignant progression of prostate cancer. If primary study endpoints are met, findings from ongoing phase III trials of well-tolerated and active combinations may provide new effective treatment options for advanced prostate cancer and thereby contribute to enhanced disease control in CRPC patients.
Insights
New treatments targeting cell signaling, DNA repair, and epigenetic pathways show promise for advanced castration-resistant prostate cancer (CRPC). Novel agents and vaccines are being evaluated in clinical trials for improved disease control.
Area of Science:
- Oncology
- Cancer Therapeutics
- Prostate Cancer Research
Background:
- Advanced castration-resistant prostate cancer (CRPC) remains a significant cause of morbidity and mortality.
- Treatment resistance after multiple therapies presents a major clinical challenge.
- Existing treatments have improved outcomes but further advancements are needed.
Purpose of the Study:
- To review novel therapeutic targets and agents for CRPC.
- To discuss emerging small-molecule inhibitors and prostate cancer vaccines.
- To highlight potential new treatment strategies for advanced prostate cancer.
Main Methods:
- Review of preclinical and clinical trial data for novel CRPC agents.
- Discussion of targeted therapies including poly ADP-ribose polymerase (PARP) and enhancer of zeste homologue 2 (EZH2) inhibitors.
- Overview of current prostate cancer vaccine candidates.
Main Results:
- Several novel agents targeting key pathways are under clinical investigation.
- Various prostate cancer vaccines are in different stages of clinical trials.
- These strategies target known drivers of prostate cancer growth and progression.
Conclusions:
- Novel targeted therapies and vaccines offer promising avenues for CRPC treatment.
- Ongoing phase III trials may yield new effective combination therapies.
- These advancements hold potential for enhanced disease control in advanced prostate cancer patients.
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Overview of Advanced Functional Groups
Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.

