Cancer Stem Cell and Gastrointestinal Cancer: Current Status, Targeted Therapy and Future Implications

Area of Science:

• Oncology
• Gastroenterology
• Cancer Biology

Background:

• Cancer stem cells (CSCs) are a distinct cell population within tumors responsible for tumor initiation, growth, and metastasis.
• CSCs are implicated in cancer recurrence and resistance to conventional therapies.
• While the CSC concept's universal applicability is debated, their role in gastrointestinal (GI) cancers, a leading cause of cancer death, is well-established.

Purpose of the Study:

• To review the current understanding of CSCs in GI cancers.
• To discuss methods for identifying and characterizing CSCs.
• To explore pathways regulating CSCs and their drug resistance, and novel therapeutic strategies.

Main Methods:

• Literature review of studies on CSCs in GI cancers.
• Analysis of key pathways involved in CSC regulation and drug resistance.
• Discussion of tumoroid culture models for testing CSC-targeted therapies.

Main Results:

• CSCs possess self-renewal and differentiation capabilities, driving tumor growth and progression.
• Identifying reliable CSC markers and functional assays remains an active area of research.
• Understanding CSC-specific pathways is crucial for developing effective anti-cancer treatments.

Conclusions:

• Targeting CSCs is a key strategy for overcoming cancer recurrence and therapy resistance in GI cancers.
• Further research is needed to refine CSC identification and develop targeted therapies.
• Tumoroid cultures show promise for evaluating novel CSC-targeting agents.