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Brain-derived neurotrophic factor does not prevent ionizing radiation-induced apoptosis in the developing rat brain
1Unitat de Neuropatologia, Servei d'Anatomia Patologica, Hospital Princeps d'Espanya, Hospitalet de Llobregat, Spain.
Neuroscience Letters
|December 29, 1998
Summary
Brain-derived neurotrophic factor (BDNF) did not protect developing rat brains from radiation-induced cell death. Studies show BDNF has no capacity to prevent ionizing radiation-induced apoptosis in the developing brain.
Area of Science:
- Neuroscience
- Developmental Biology
- Radiation Biology
Background:
- Ionizing radiation can induce apoptosis in the developing brain.
- Brain-derived neurotrophic factor (BDNF) is crucial for neuronal survival and development.
- Investigating BDNF's potential neuroprotective effects against radiation is important for understanding brain development and radiation injury.
Purpose of the Study:
- To determine if brain-derived neurotrophic factor (BDNF) can protect neural cells from ionizing radiation-induced apoptosis in the developing rat brain.
Main Methods:
- Fibroblasts transfected with BDNF (F3N-BDNF) or mock-transfected (F3A-MT) were grafted into the brains of P1 rats.
- Rats were irradiated at P3 with 2 Gy gamma rays.
- Apoptotic cell counts were compared between grafted and non-grafted, irradiated and non-irradiated control groups.
Main Results:
- No significant differences in apoptotic cell numbers were observed between BDNF-grafted and mock-grafted irradiated rats.
- Apoptotic cell counts were similar in both grafted and non-grafted irradiated rats.
- BDNF did not reduce radiation-induced apoptosis in the developing rat brain.
Conclusions:
- Brain-derived neurotrophic factor (BDNF) does not possess the capacity to prevent ionizing radiation-induced apoptosis in the developing rat brain.
- These findings suggest BDNF is not a viable therapeutic agent for mitigating radiation-induced neural apoptosis in early development.