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Transforming growth factor-beta1 induced myofibroblasts regulate LNCaP cell death
Herb Singh1, Truong D Dang, Gustavo E Ayala
1Scott Department of Urology, Baylor College of Medicine, Houston, Texas 77030, USA. hsingh3@houston.rr.com
The Journal of Urology
|November 13, 2004
Summary
Reactive stroma, a wound response, was investigated for its effect on prostate cancer cell growth. Findings show reactive stroma inhibits prostate cancer cell death, suggesting a role in tumor progression.
Area of Science:
- Oncology
- Cell Biology
- Tissue Engineering
Background:
- Reactive stroma is a common wound response observed in tissue injury and cancer.
- Understanding its role in prostate cancer is crucial for developing targeted therapies.
Purpose of the Study:
- To investigate the influence of reactive stroma on prostate cancer cell growth.
- To determine if induced reactive stroma affects prostate cancer cell death and proliferation.
Main Methods:
- Prostate stromal cells were treated with transforming growth factor-beta1 (TGF-beta1) to induce reactive stroma.
- LNCaP prostate cancer cells were co-cultured with induced or control stromal cells.
- Flow cytometry and TUNEL staining were used to assess cell death and proliferation in a xenograft model.
Main Results:
- Co-culture with TGF-beta1 induced stromal cells significantly decreased LNCaP cell death.
- In vivo, inhibition of TGF-beta1 in reactive stroma increased LNCaP cell apoptosis.
- Reactive stroma, characterized by myofibroblasts, inversely correlated with prostate cancer cell death.
Conclusions:
- Reactive stroma plays a significant role in modulating prostate cancer cell growth.
- Further research is needed to elucidate the regulatory mechanisms between reactive stroma and prostate cancer cells.