Related Experiment Video
Updated: Jul 15, 2026
06:32
Isolation, Enrichment, and Maintenance of Medulloblastoma Stem Cells
Published on: September 1, 2010
CD133 structural instability as a gateway to medulloblastoma vulnerability
Zaira Spinello1, Martina Brunetti2, Natalia Pediconi2
1Department of Life, Health and Health Professions Sciences, Link Campus University, Rome, Italy.
Cancer Cell International
|July 14, 2026
Summary
This study reveals Brefeldin A disrupts CD133 structure, impairing medulloblastoma stem cell function. Clinically approved drugs were identified that mimic these effects for potential Group 3 medulloblastoma treatment.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Medulloblastoma (MB) is the most common pediatric brain tumor.
- Group 3 MB is highly aggressive, with frequent metastasis and mortality.
- MB stem cells (MBSCs) drive tumor aggressiveness and therapy resistance.
Purpose of the Study:
- To investigate the effect of Brefeldin A (BFA) on CD133 structure in Group 3 MB.
- To identify FDA/EMA-approved compounds that mimic BFA's mechanism for targeting MBSCs.
Main Methods:
- Group 3 MB cell lines treated with BFA.
- Proteomic analysis (nano-LC-MS/MS) of CD133.
- Computational screening for FDA/EMA-approved drugs.
Main Results:
- BFA induced structural disruption of CD133, compromising MBSC stemness.
- This correlated with reduced clonogenicity and PI3K/AKT/mTOR pathway downregulation.
- Clinically approved compounds recapitulating BFA's effects were identified.
Conclusions:
- BFA modulates CD133 structure, impacting MBSC function.
- Approved compounds offer a potential therapeutic strategy against therapy-resistant Group 3 MB.
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