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- ERRATUM: Caveolin-1 Modulates Docetaxel-Induced Cell Death in Breast Cancer Cell Subtypes through Different Mechanisms
- Jinho Kang, Joo Hee Park, Hye Jin Lee, Ukhyun Jo, Jong Kuk Park, Jae Hong Seo, Yeul Hong Kim, Insun Kim, Kyong Hwa Park
- Cancer Res Treat. 2019;51(3):1257-1257. Published online June 5, 2019
- DOI: https://doi.org/10.4143/crt.2015.227.2
- Corrects: Cancer Res Treat 2016;48(2):715
- 5,577 View
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Original Article
- Caveolin-1 Modulates Docetaxel-Induced Cell Death in Breast Cancer Cell Subtypes through Different Mechanisms
- Jinho Kang, Joo Hee Park, Hye Jin Lee, Ukhyun Jo, Jong Kuk Park, Jae Hong Seo, Yeul Hong Kim, Insun Kim, Kyong Hwa Park
- Cancer Res Treat. 2016;48(2):715-726. Published online September 21, 2015
- DOI: https://doi.org/10.4143/crt.2015.227
- Correction in: Cancer Res Treat 2019;51(3):1257
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Abstract
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ePub - Purpose
Caveolin-1 (CAV-1) expression is more associated with basal-like cancers than estrogen receptor- or ErbB-2–expressing breast cancers. However, the biological relevance of different levels of CAV-1 expression according to subtype in the epithelial compartment of breast cancer remains unclear.
Materials and Methods
We investigated whether CAV-1 functions as a tumor suppressor and/or modulator of the cytotoxic activity of docetaxel (DTX) in subtypes of breast cancer using in vitro and xenograft models.
Results
The levels of CAV-1 expression were closely associated with DTX sensitivity in triple-negative breast cancer cells. In addition, CAV-1 significantly inhibited cell proliferation and modulated DTX-induced apoptosis through cell cycle arrest in the G2/M phase. The mechanisms underlying DTX-induced apoptosis differed in breast cancers according to the levels of CAV- 1 expression. DTX robustly enhanced Bcl-2 inactivation by CAV-1 in MDA-MB-231 cells, while p53-mediated cell cycle arrest by DTX was more pronounced in CAV-1–low but p53-functional MCF-7 cells. In parallel with the data from breast cancer cell lines, CAV-1–transfected MCF-7 cells showed higher efficacy of DTX treatment in a xenograft model.
Conclusion
We clearly demonstrated cooperative effects between CAV-1 and DTX in mediating apoptosis, suggesting that the levels of CAV-1 expression might be an important indicator for DTX use in breast cancer. -
Citations
Citations to this article as recorded by
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