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CD44: More than a mere stem cell marker
I Morath1, T N Hartmann2, V Orian-Rousseau1
1Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Karlsruhe, Germany.
The International Journal of Biochemistry & Cell Biology
|September 20, 2016
Summary
Cluster of Differentiation 44 (CD44) promotes cancer stemness by binding to extracellular matrix components and growth factors. This interaction is crucial in maintaining malignant cell stemness in various cancers.
Area of Science:
- Oncology
- Cell Biology
- Molecular Biology
Background:
- CD44 is a cell adhesion molecule vital for tumor progression and metastasis.
- CD44 interacts with extracellular matrix components like hyaluronan (HA) and osteopontin (OPN).
- HA and OPN are abundant in tumor microenvironments, maintaining cancer stemness.
Purpose of the Study:
- To review the role of CD44 in promoting cancer cell stemness.
- To explore CD44 interactions with extracellular matrix components, growth factors, and cytokines.
- To understand CD44's function in the leukemic stem cell niche and solid tumors.
Main Methods:
- Literature review of existing research on CD44.
- Analysis of CD44's binding interactions with extracellular matrix and signaling molecules.
- Examination of CD44's role in cancer stem cell maintenance.
Main Results:
- CD44 binding to HA and OPN supports cancer cell stemness.
- CD44 acts as a cancer stem cell marker in multiple cancer types.
- CD44 interactions are key to maintaining the stemness of malignant cells.
Conclusions:
- CD44 plays a significant role in promoting cancer stemness.
- Understanding CD44's interactions is crucial for developing targeted cancer therapies.
- CD44 is a promising therapeutic target for overcoming cancer metastasis and recurrence.
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