Revisiting the Syndecans: Master Signaling Regulators with Prognostic and Targetable Therapeutic Values in Breast...

Area of Science:

• Oncology
• Cell Biology
• Biochemistry

Background:

• Syndecans (SDC1-4) are cell surface heparan sulfate proteoglycans present in mammalian tissues.
• Aberrant syndecan expression in tumor or stromal cells impacts cancer initiation and progression.
• Syndecans play pleiotropic roles in signaling pathways regulating proliferation, adhesion, migration, invasion, metastasis, stemness, and angiogenesis.

Purpose of the Study:

• To review the critical roles of syndecans in breast cancer pathogenesis.
• To focus on the prognostic significance and molecular regulators of syndecan expression and localization.
• To highlight syndecan-dependent mechanisms in breast cancer cell behavior and therapeutic potential.

Main Methods:

• Literature review of syndecan roles in breast cancer.
• Analysis of syndecan expression and localization in tumor and microenvironmental cells.
• Examination of molecular mechanisms including nuclear hormone receptor signaling, microRNA, and exosome modulation.

Main Results:

• Syndecans significantly influence breast cancer initiation and progression.
• SDC expression and localization correlate with prognostic significance.
• Syndecans modulate key cellular processes including epithelial-mesenchymal transition and cancer stemness.

Conclusions:

• Syndecans are integral to breast cancer pathogenesis, affecting multiple signaling pathways.
• Understanding syndecan regulation and function provides insights into breast cancer progression.
• Syndecans represent promising therapeutic targets for breast cancer treatment.