Cancer stem cells: perspectives for therapeutic targeting

Area of Science:

• Oncology
• Cancer Biology
• Immunology

Background:

• Cancer stem cells (CSCs) are rare tumor populations with stemness and tumor-initiating properties.
• CSCs exhibit heterogeneity, plasticity, and resistance to standard therapies and immunotherapy.
• Identifying definitive CSC markers for solid tumors remains a challenge.

Purpose of the Study:

• To review the biological and immunological characterization of CSCs.
• To discuss progress in identifying CSC-specific molecules and signaling pathways.
• To explore potential CSC-targeting therapeutic strategies.

Main Methods:

• Literature review of CSC research.
• Analysis of CSC heterogeneity, plasticity, and immunogenicity.
• Discussion of identified CSC markers and signaling pathways.

Main Results:

• CSCs are implicated in metastasis and therapy resistance.
• Limited definitive markers exist for in vivo identification of solid tumor CSCs.
• CSCs generally display low immunogenicity, impairing immune responses.

Conclusions:

• Despite challenges, progress has been made in understanding CSC biology and immunology.
• Targeted therapies exploiting CSC-specific molecules and pathways are under development.
• Further characterization of CSCs is crucial for designing effective novel therapeutic strategies.