Related Experiment Videos
[Hormones and growth of cancer]
1Osaka Medical Center for Maternal and Child Health.
Abstract:
Estrogen and androgen play essential roles in the development of breast cancer and prostate cancer, respectively. However, only 30% of breast cancer mass and 70% of prostate cancer mass are found to be hormone-dependent when they have been treated clinically. These findings show that hormone dependency of cancer disappears rather easily. Recently, it has been found that the growth of hormone-dependent cancer is mediated through sex steroid-induced growth factors in an autocrine manner. Future studies on sex steroid-induced growth factor(s) will play important roles in order to understand the molecular mechanisms of the development and growth of breast cancer and prostate cancer.
Insights
Hormone dependency in breast and prostate cancers can be lost, suggesting a need for further research into sex steroid-induced growth factors that mediate cancer progression.
Area of Science:
- Endocrinology and Oncology
- Molecular Biology
Context:
- Estrogen and androgen are critical in breast and prostate cancer development, respectively.
- Clinical observations reveal a significant loss of hormone dependency in advanced cancers (30% breast, 70% prostate).
Purpose:
- To investigate the mechanisms underlying the loss of hormone dependency in sex hormone-related cancers.
- To explore the role of autocrine sex steroid-induced growth factors in cancer progression.
Summary:
- Hormone-dependent cancers, including breast and prostate cancer, frequently lose their dependency on hormones during treatment.
- Recent findings indicate that sex steroid-induced growth factors, acting in an autocrine fashion, mediate the growth of hormone-dependent cancers.
- Understanding these growth factors is crucial for elucidating the molecular basis of these malignancies.
Impact:
- Highlights the transient nature of hormone dependency in common cancers.
- Identifies sex steroid-induced growth factors as key targets for future therapeutic strategies.
- Emphasizes the need for continued research into the molecular mechanisms driving breast and prostate cancer growth.