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Heme Oxygenase-1 in Central Nervous System Malignancies
Giuseppe Sferrazzo1, Michelino Di Rosa2, Eugenio Barone3
1Department of Drug Science, Biochemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
Journal of Clinical Medicine
|May 28, 2020
Summary
Heme oxygenase-1 (HO-1) is crucial in pediatric brain tumors, influencing survival and chemoresistance. Targeting HO-1 offers a novel strategy to overcome treatment resistance in central nervous system malignancies.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Central nervous system (CNS) tumors are the most frequent pediatric solid tumors, representing 20-25% of childhood cancers.
- Altered redox homeostasis in brain tumors activates survival pathways, contributing to disease progression and therapeutic resistance.
- Heme oxygenase-1 (HO-1) is a key enzyme in heme degradation, producing carbon monoxide, ferrous iron, and biliverdin, with complex roles in cancer.
Purpose of the Study:
- To review the role of HO-1 in CNS malignancies.
- To explore the potential of targeting HO-1 to enhance existing therapeutic strategies.
- To discuss HO-1's involvement in the development and chemo/radiotherapy resistance of brain tumors.
Main Methods:
- Literature review focusing on HO-1 and CNS tumors.
- Analysis of studies investigating HO-1's role in pediatric brain tumor survival and drug resistance.
- Exploration of therapeutic strategies targeting HO-1.
Main Results:
- HO-1's biological effects in tumor cells are cell-specific, promoting either cell death or tumor survival and progression.
- HO-1 overexpression is implicated in the development of brain tumors and resistance to chemotherapy and radiotherapy.
- Targeting HO-1 presents a potential strategy to overcome treatment resistance in CNS malignancies.
Conclusions:
- HO-1 plays a significant role in the pathogenesis and therapeutic resistance of pediatric CNS tumors.
- Targeting HO-1 is a promising approach to improve treatment outcomes for patients with brain tumors.
- Further research into HO-1 inhibitors could lead to innovative therapeutic regimens for gliomas, medulloblastoma, and other CNS malignancies.
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