CD133-targeted niche-dependent therapy in cancer: a multipronged approach

Area of Science:

• Oncology
• Cancer Stem Cell Biology
• Tumor Microenvironment

Background:

• Therapeutic resistance and relapse in cancer are often linked to tumor heterogeneity and cancer stem cells (CSCs).
• CD133(+) CSCs are implicated in various human cancers, but clinical translation of targeting strategies faces challenges due to CSC plasticity and marker limitations.
• CSCs exist within complex vascular niches, where interactions with the microenvironment influence niche homeostasis and cancer progression.

Purpose of the Study:

• To discuss the functional role of CD133(+) cells within their niche.
• To explore the potential of targeting CD133 as a niche-dependent therapeutic strategy.

Main Methods:

• Review of existing literature on CD133(+) CSCs, their vascular niches, and microenvironment interactions.
• Analysis of the functional significance of CD133(+) cells in the context of their niche.
• Evaluation of therapeutic strategies targeting CD133 within the niche framework.

Main Results:

• CD133(+) CSCs are integral components of complex vascular niches.
• Reciprocal signaling between CD133(+) CSCs and their niche regulates niche morphogenesis and homeostasis.
• Targeting CD133 alone may be limited due to CSC plasticity and niche dependency.

Conclusions:

• A niche-dependent approach to targeting CD133(+) CSCs offers a more promising therapeutic strategy.
• Understanding the interplay between CSCs and their niche is essential for overcoming therapeutic resistance.
• Targeting the CSC niche rather than solely the CSC marker may improve treatment efficacy and prevent relapse.