CGF-Conditioned Medium Modulates Astrocytic Differentiation and Invasiveness in U87MG Glioblastoma Cells
Laura Giannotti1, Benedetta Di Chiara Stanca1,2, Francesco Spedicato3
1Department of Experimental Medicine, University of Salento, 73100 Lecce, Italy.
Biology
|October 29, 2025
Summary
Concentrated Growth Factors conditioned medium (CGF-CM) promotes glioblastoma cell differentiation. This study shows CGF-CM reduces glioblastoma cell proliferation and migration, suggesting potential for treating aggressive brain tumors.
Area of Science:
- Neuro-oncology
- Cell Biology
- Biomaterials
Background:
- Glioblastoma (GBM) exhibits high plasticity and poor differentiation, contributing to its aggressive nature.
- Platelet-derived preparations like Concentrated Growth Factors (CGF) contain bioactive molecules with unexplored effects on tumor biology.
Purpose of the Study:
- To investigate the effects of CGF-conditioned medium (CGF-CM) on U87MG glioblastoma cell behavior and differentiation.
- To explore the potential of CGF-derived bioactive molecules in modulating GBM aggressiveness.
Main Methods:
- U87MG glioblastoma cells were cultured with CGF-CM for 14 days.
- Assessed cell viability, morphology, DNA integrity, migration, proliferation, and astrocytic marker expression.
Main Results:
- CGF-CM initially enhanced cell viability but later decreased proliferation and migration.
- Cells acquired astrocyte-like morphology with increased glial fibrillary acidic protein (GFAP) expression.
- Downregulation of GBM-associated markers (AQP-4, S100B) was observed.
Conclusions:
- CGF-CM effectively modulates phenotypic plasticity in U87MG cells, promoting differentiation towards an astroglial-like phenotype.
- These findings suggest CGF-CM could be a basis for future therapies targeting GBM aggressiveness using autologous derivatives.
