Possibilities of new therapeutic strategies in brain tumors. 2010

Eric Bouffet, and Uri Tabori, and Annie Huang, and Ute Bartels
The Hospital for Sick Children, Toronto, Canada. eric.bouffet@sickkids.ca

Advances in the management of pediatric brain tumors have been less successful than in other areas of pediatric oncology. This gap in outcome is essentially related to specific aspects of these tumors in this age group such as the fact that the surrounding brain is still developing, vital structures limit aggressive attempts at removing infiltrating lesions, drug penetration into the central nervous system is often poor and short and long term toxicities of some treatments to the surrounding brain are significant. This review describes new therapeutic strategies and their impact in the pediatric neuro-oncology practice. Although the number of new active antineoplastic agents has been limited during the last decade, significant improvements in the chemotherapeutic management of pediatric brain tumors have been observed. These relate to the optimization of chemotherapy protocols, the development of new schedules of administration such as metronomic schedules, sequential high dose chemotherapy, concomitant administration of chemotherapy and radiation, or the introduction of intrathecal or intraventricular chemotherapy in specific protocols. Technological advances in radiotherapy allow delivering optimal doses to the target volume while decreasing the volume of normal surrounding tissue receiving radiation. As a consequence, conformal radiation therapy currently plays a major role in the management of several pediatric brain tumors, including in infants where radiation has been traditionally avoided. The role of molecularly targeted agents is still unclear and a number of phase I and II trials are ongoing to better define the future of these new therapies in pediatric brain tumors.

UI MeSH Term Description Entries
D001932 Brain Neoplasms Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain. Brain Cancer,Brain Metastases,Brain Tumors,Cancer of Brain,Malignant Primary Brain Tumors,Neoplasms, Intracranial,Benign Neoplasms, Brain,Brain Neoplasm, Primary,Brain Neoplasms, Benign,Brain Neoplasms, Malignant,Brain Neoplasms, Malignant, Primary,Brain Neoplasms, Primary Malignant,Brain Tumor, Primary,Brain Tumor, Recurrent,Cancer of the Brain,Intracranial Neoplasms,Malignant Neoplasms, Brain,Malignant Primary Brain Neoplasms,Neoplasms, Brain,Neoplasms, Brain, Benign,Neoplasms, Brain, Malignant,Neoplasms, Brain, Primary,Primary Brain Neoplasms,Primary Malignant Brain Neoplasms,Primary Malignant Brain Tumors,Benign Brain Neoplasm,Benign Brain Neoplasms,Benign Neoplasm, Brain,Brain Benign Neoplasm,Brain Benign Neoplasms,Brain Cancers,Brain Malignant Neoplasm,Brain Malignant Neoplasms,Brain Metastase,Brain Neoplasm,Brain Neoplasm, Benign,Brain Neoplasm, Malignant,Brain Neoplasms, Primary,Brain Tumor,Brain Tumors, Recurrent,Cancer, Brain,Intracranial Neoplasm,Malignant Brain Neoplasm,Malignant Brain Neoplasms,Malignant Neoplasm, Brain,Neoplasm, Brain,Neoplasm, Intracranial,Primary Brain Neoplasm,Primary Brain Tumor,Primary Brain Tumors,Recurrent Brain Tumor,Recurrent Brain Tumors,Tumor, Brain
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003131 Combined Modality Therapy The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used. Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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