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Updated: Feb 12, 2026

Isolation of Cancer Stem Cells From Human Prostate Cancer Samples
Published on: March 14, 2014
Polygodial analog induces apoptosis in LNCaP prostate cancer cells
Subramanyam Dasari1, Angela Lincy Prem Antony Samy1, Parnal Narvekar1
1Department of Biomedical Sciences, College of Medicine, University of Illinois, Rockford, IL, USA.
Abstract:
Prostate cancer (PCa) is the second leading cause of death in American men. The chemotherapeutic treatment strategies are generally not effective and can lead to side effects. Hence, there is an urgent need to identify novel chemotherapeutic agents. The aim of this study was to synthesize and evaluate the therapeutic effects of a synthetic analog of polygodial (PG), a pungent constituent abundantly present in mountain pepper, water pepper and dorrigo pepper, on LNCaP PCa cell line and its anti-cancer mechanisms in a preclinical study. We evaluated the anti-cancer potential of the PG analog namely DRP-27 using various assays such as cell viability by MTT assay, anchorage independent growth by soft agar assay, reactive oxygen species generation by 2',7'-dichlorofluorescein probe-based fluorescence assay, and apoptosis by Annexin-V and TUNEL assays respectively. Western blot analysis was performed to identify the molecular mechanism of DRP-27-induced cell death. Our results showed that DRP-27 significantly inhibited LNCaP cell proliferation in a dose-dependent manner at 48 h treatment in vitro. In addition, DRP-27 potently inhibited anchorage-independent growth of these cells. Flow cytometry, Annexin-V and TUNEL assays confirmed that DRP-27 induces apoptosis in LNCaP cells. DRP-27 also induced the activation of intracellular reactive oxygen species. Western blot analysis revealed that DRP-27 downregulated the expression of survivin, while activating Bax and DNA damage marker pH2AX in LNCaP cells. In conclusion, our study suggests that DRP-27 might be an effective anti-cancer agent for PCa.
Insights
A new synthetic analog of polygodial, DRP-27, effectively inhibits prostate cancer (PCa) cell growth and induces apoptosis. This compound shows promise as a novel chemotherapeutic agent for PCa treatment.
Area of Science:
- Oncology
- Pharmacology
- Medicinal Chemistry
Background:
- Prostate cancer (PCa) is a leading cause of cancer death in men, with limited effective chemotherapeutic options.
- Current treatments for PCa often lack efficacy and cause significant side effects, necessitating novel therapeutic strategies.
- Polygodial (PG), a natural compound, has shown potential, but synthetic analogs may offer improved therapeutic properties.
Purpose of the Study:
- To synthesize and evaluate the anti-cancer effects of a novel polygodial analog, DRP-27, on the LNCaP prostate cancer cell line.
- To investigate the underlying anti-cancer mechanisms of DRP-27 in preclinical models.
- To assess DRP-27's potential as a new chemotherapeutic agent for prostate cancer.
Main Methods:
- Cell viability was assessed using MTT assays.
- Anchorage-independent growth was measured via soft agar assays.
- Apoptosis, reactive oxygen species (ROS) generation, and molecular mechanisms were analyzed using Annexin-V, TUNEL, fluorescence assays, and Western blotting.
Main Results:
- DRP-27 significantly inhibited LNCaP cell proliferation and anchorage-independent growth in a dose-dependent manner.
- DRP-27 induced apoptosis and increased intracellular ROS levels in prostate cancer cells.
- Western blot analysis indicated DRP-27 downregulated survivin and upregulated Bax and pH2AX expression, suggesting DNA damage and apoptotic pathways activation.
Conclusions:
- The synthetic polygodial analog DRP-27 demonstrates potent anti-cancer activity against prostate cancer cells in vitro.
- DRP-27 induces apoptosis and activates cell death pathways, making it a potential candidate for further development as a PCa therapeutic.
- This study supports DRP-27 as a promising novel chemotherapeutic agent for prostate cancer treatment.
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