Prion Protein in Glioblastoma Multiforme

Area of Science:

• Neuro-oncology
• Cancer Biology
• Molecular Medicine

Background:

• Cellular prion protein (PrPc), encoded by the PRNP gene, is widely expressed in mammalian cells, particularly in the CNS.
• PrPc is linked to tumorigenesis, influencing tumor growth, differentiation, and therapy resistance.
• Overexpression of PrPc is associated with malignant phenotypes in cancer stem cells (CSCs) across various solid tumors.

Purpose of the Study:

• To review the specific role of PrPc in glioblastoma (GBM).
• To elucidate how PrPc maintains glioblastoma stem cells (GSCs) phenotype.
• To explore PrPc's influence on the GSC niche and GBM progression.

Main Methods:

• Literature review focusing on PrPc and glioblastoma.
• Analysis of studies investigating PrPc's role in cancer stem cell biology.
• Synthesis of current research on PrPc's impact on GSC properties and the tumor microenvironment.

Main Results:

• PrPc is critical for maintaining the GSC phenotype in GBM, impacting infiltration and relapse.
• PrPc modulates GSCs' stem cell-like properties and inhibits their differentiation.
• PrPc influences the GSC niche, creating a microenvironment conducive to GBM growth and invasion.

Conclusions:

• PrPc is a key factor in glioblastoma pathogenesis by sustaining the GSC population.
• Targeting PrPc may offer novel therapeutic strategies for GBM.
• Further research into PrPc's mechanisms in GBM is warranted.