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Updated: Jun 22, 2026
An Orthotopic Murine Model of Human Prostate Cancer Metastasis
Published on: September 18, 2013
(-)-Gossypol reduces invasiveness in metastatic prostate cancer cells
Yi-Wen Huang1, Li-Shu Wang, Michael K Dowd
1Laboratory of Reproductive and Molecular Endocrinology, College of Veterinary Medicine, The Ohio State University, Columbus, OH, U.S.A.
Background:
Acquisition of metastatic ability by prostatic cancer cells is the most lethal aspect of prostatic cancer progression. (-)-Gossypol, a polyphenolic compound present in cottonseeds, possesses anti-proliferative and proapoptotic effects in various cancer cells.
Materials And Methods:
In this study, the differences between MAT-LyLu, rat prostate cancer cells, with a novel isolated subline from metastasized tumors in the lungs of MAT-LyLu-bearing Copenhagen rats (MLL cells) were compared with respect to cell growth and invasion. The effects of (-)-gossypol on cell viability, colony formation, invasive ability and cell migration in MAT-LyLu and MLL cells were also evaluated.
Results:
Results showed that MLL cells displayed higher growth ability, colony formation and aggressive penetration than those of MAT-LyLu cells. MLL cells possess lower protein expression of Bcl-xL and nm23-H1 than those of MAT-LyLu cells, implying differences in invasive ability. Moreover, (-)-gossypol treatment induced a dose-dependent inhibition of invasive activity and cell viability and reduced Bcl-2 and Bcl-xL proteins but induced nm23-H1 protein in both cell lines.
Conclusion:
These findings illustrated that (-)-gossypol reduced in vitro invasion of both the parental MAT-LyLu cells and the isolated MLL cells, suggesting that (-)-gossypol might serve as a chemotherapeutic and/or chemopreventive agent.
Insights
(-)-Gossypol, a cottonseed compound, inhibits prostate cancer cell invasion. This study found it reduced the invasive ability of both standard (MAT-LyLu) and metastatic (MLL) rat prostate cancer cells.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Prostate cancer metastasis is a lethal aspect of disease progression.
- (-)-Gossypol, a natural compound, exhibits anti-cancer properties.
- Understanding differences in metastatic potential is crucial for treatment.
Purpose of the Study:
- To compare the metastatic potential of MAT-LyLu and a novel MLL rat prostate cancer cell subline.
- To evaluate the effects of (-)-gossypol on the viability, invasion, and migration of these cell lines.
Main Methods:
- Comparison of cell growth and invasion between MAT-LyLu and MLL cells.
- Assessment of (-)-gossypol's impact on cell viability, colony formation, invasion, and migration.
- Analysis of key protein expression (Bcl-xL, nm23-H1, Bcl-2) in response to (-)-gossypol.
Main Results:
- MLL cells demonstrated significantly higher growth, colony formation, and invasion compared to MAT-LyLu cells.
- MLL cells showed lower expression of Bcl-xL and nm23-H1 proteins than MAT-LyLu cells.
- (-)-Gossypol dose-dependently inhibited cell viability and invasion, reduced Bcl-2/Bcl-xL, and increased nm23-H1 protein levels.
Conclusions:
- (-)-Gossypol effectively reduces in vitro invasion in both prostate cancer cell lines.
- These findings suggest (-)-gossypol's potential as a chemotherapeutic or chemopreventive agent for prostate cancer.
