Stem cell programs in cancer initiation, progression, and therapy resistance.

Area of Science:

• Oncology
• Cancer Biology
• Stem Cell Research

Background:

• Cancer stem cells (CSCs) are a minor subpopulation driving tumor heterogeneity, progression, and recurrence.
• CSCs possess self-renewal and differentiation capabilities, regulated by complex molecular networks.
• CSCs contribute to therapeutic resistance and disease relapse.

Purpose of the Study:

• To review key features and regulatory mechanisms of CSCs in tumor initiation, progression, and therapy resistance.
• To discuss factors contributing to CSC therapeutic resistance.
• To evaluate therapeutic strategies for eliminating therapy-resistant CSCs.

Main Methods:

• Literature review of CSC biology and therapeutic targeting.
• Analysis of molecular mechanisms regulating CSC maintenance and plasticity.
• Evaluation of emerging technologies like single-cell sequencing and CRISPR-Cas9.

Main Results:

• CSCs exhibit resistance through quiescence, epithelial-to-mesenchymal transition (EMT), and resistance to DNA damage.
• Targeted therapies, including drugs, viral agents, and immunotherapy, show promise.
• New technologies are advancing CSC research.

Conclusions:

• Elucidating CSC mechanisms is vital for improving targeted cancer therapies.
• Addressing challenges in CSC research and therapeutic targeting is essential.
• Future research should focus on overcoming CSC-mediated resistance for better patient outcomes.