What Researchers Did
Researchers investigated how two factors, HIF-1α and HIF-2α, work together to promote glioblastoma (GBM) growth and how hyperbaric oxygen (HBO) affects GBM cells, both alone and in combination with chemotherapy.
What They Found
The study found that simultaneously knocking out both HIF-1α and HIF-2α in GBM cells led to the greatest growth rate but the lowest degree of stemness and invasion. After temozolomide (TMZ) chemotherapy, these dual-knockout cells showed the greatest rate of apoptosis and longest survival. Hyperbaric oxygen treatment also decreased HIF-1α and HIF-2α expression and stemness, and when combined with TMZ, increased apoptosis rates and survival while decreasing tumour size and weight.
Canadian Relevance
No direct Canadian connection identified. Glioblastoma is not a Health Canada-recognized indication for HBOT.
Study Limitations
This study was conducted using cell cultures and animal models, meaning the findings may not directly translate to human patients.