Caveolin-1: an ambiguous entity in breast cancer
Naveen Chintalaramulu1, Dhirendra Pratap Singh2, Biplov Sapkota1
1Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA.
Molecular Cancer
|April 8, 2025
Summary
Caveolin-1 (Cav-1) plays a complex role in breast cancer (BC) metastasis, acting as both a tumor suppressor and promoter. Understanding Cav-1's context-dependent functions is key to developing targeted therapies for metastatic BC.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Breast cancer (BC) is a leading cause of cancer death in women, with metastasis being the primary driver of mortality.
- Caveolin-1 (Cav-1), a protein regulating cell structure, is increasingly implicated in BC metastasis, exhibiting context-dependent roles.
- Stromal Cav-1 expression may serve as a prognostic marker, highlighting its complex involvement in tumor progression.
Purpose of the Study:
- To review the multifaceted role of Caveolin-1 (Cav-1) in breast cancer (BC) metastasis.
- To explore Cav-1's influence on key metastatic processes including metabolism, cell interactions, and the metastatic cascade.
- To discuss the therapeutic potential and challenges associated with targeting Cav-1 in BC.
Main Methods:
- Literature review synthesizing current research on Cav-1 in BC metastasis.
- Analysis of Cav-1's function in different BC subtypes (HR+, HER2+, TNBC).
- Examination of Cav-1's role in regulating metabolic pathways, stromal interactions, apoptosis, and senescence.
Main Results:
- Cav-1 exhibits dual roles in BC, acting as a tumor suppressor or promoter based on cellular context and subtype.
- Cav-1 modulates critical aspects of the metastatic cascade, including ECM interactions, migration, invasion, and premetastatic niche formation.
- Stromal Cav-1 expression is a potential prognostic indicator in breast cancer.
Conclusions:
- Caveolin-1 is a significant factor in breast cancer metastasis, influencing multiple stages of the disease.
- Targeting Cav-1 presents therapeutic opportunities, but its heterogeneous expression and context-specific activity require further investigation.
- Future research into Cav-1's mechanisms is crucial for developing effective treatments for metastatic breast cancer.
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