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Updated: Jan 22, 2026

Isolation of Cancer Stem Cells From Human Prostate Cancer Samples
Published on: March 14, 2014
[The effects of tectochrysin on prostate cancer cells apoptosis and its mechanism]
Yu Wang1, Rui-Jun Ke1, Pan-Ruo Jiang
1Shaoxing University School of Medicine, Shaoxing 312000, China.
Objective:
To investigate the effects of tectochrysin on prostate cancer cell line 22Rv.1 and reveal its molecular mechanism.
Methods:
Tectochrysin at the concentrations of 0~20 μg/ml was applied to 22Rv.1 cells and normal prostate cell RWPE-1. The proliferation activity of the cells was detected by MTS assay. Flow cytometry and hoechst 33342 staining were used to analyze the effects of drugs on cell apoptosis, death, cell cycle and nuclear type changes. LDH release test was used to analyze the cytotoxicity of the drug to 22Rv.1 cells. QPCR and Western blot were used to analyze the effects of the drug on the expressions of genes in 22Rv.1 cells. Finally, the tumor inhibited effect of the drug on the bearing tumor BALB/c mice were confirmed though anti-tumor experiment.
Results:
Tectochrysin could significantly inhibit the proliferation activity of 22Rv.1 cells and induced their apoptosis, and promoted the expressions of genes dr4, dr5, trail, p53, caspase-3, caspase-8, caspase-9, bid, bax and foxo3, inhibited the expressions of anti-apoptotic genes akt, pi3k and bcl-2.
Conclusion:
Tectochrysin can induce prostate cancer cells apoptosis through affecting TRAIL and PI3K/AKT signaling pathways, and has anti-prostate cancer effect.
Insights
Tectochrysin inhibits prostate cancer cell proliferation and induces apoptosis by modulating TRAIL and PI3K/AKT pathways. This natural compound demonstrates potential as an anti-prostate cancer agent.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Prostate cancer remains a significant health concern globally.
- Identifying novel therapeutic agents is crucial for effective treatment.
- Tectochrysin, a natural flavonoid, has shown potential anti-cancer properties.
Purpose of the Study:
- To investigate the anti-cancer effects of tectochrysin on the 22Rv.1 prostate cancer cell line.
- To elucidate the molecular mechanisms underlying tectochrysin's action.
- To evaluate tectochrysin's efficacy in an in vivo model.
Main Methods:
- Cell proliferation was assessed using MTS assay.
- Apoptosis, cell cycle, and nuclear changes were analyzed via flow cytometry and Hoechst staining.
- Cytotoxicity was determined by LDH release assay.
- Gene expression changes were analyzed using qPCR and Western blot.
- In vivo anti-tumor effects were evaluated in BALB/c mice.
Main Results:
- Tectochrysin significantly inhibited 22Rv.1 cell proliferation and induced apoptosis.
- Upregulation of pro-apoptotic genes (DR4, DR5, TRAIL, p53, caspases, BAX, FOXO3) and downregulation of anti-apoptotic genes (AKT, PI3K, BCL-2) were observed.
- Tectochrysin demonstrated anti-tumor effects in vivo.
Conclusions:
- Tectochrysin induces apoptosis in prostate cancer cells.
- The mechanism involves modulation of the TRAIL and PI3K/AKT signaling pathways.
- Tectochrysin exhibits anti-prostate cancer activity.
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