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Gliomas are the most common type of malignant primary central nervous system (CNS) tumors, resulting in significant morbidity and mortality in children and adolescent and young adult (AYA) patients. The discovery of mutations in isocitrate dehydrogenase (IDH) genes has dramatically changed the classification and understanding of gliomas. IDH mutant gliomas have distinct clinical, pathological, and molecular features including a favorable prognosis and response to therapy compared to their wildtype counterparts.
DNA methylation-based classification is now central to contemporary neuro-oncology, as highlighted by the World Health Organization classification of central nervous system tumors. This expansion is a result of newly identified tumor types discovered through our large online repository and global collaborations, underscoring CNS tumor heterogeneity.
Chemotherapy often kills a large fraction of cancer cells but leaves behind a small population of drug-tolerant persister cells. These persister cells survive drug treatments through reversible, non-genetic mechanisms and cause tumour recurrence upon cessation of therapy. Here, we report a drug tolerance mechanism regulated by the germ-cell-specific H3K4 methyltransferase PRDM9.
Tropomyosin receptor kinase (TRK) fusions are detected in less than 2% of central nervous system tumors. There are limited data on the clinical course of affected patients.
Several studies have established that patients with localized perinatal neuroblastoma can be safely observed; however, long-term outcomes have not been previously reported. We evaluated long-term outcomes of infants with suspected perinatal neuroblastoma enrolled on the Children's Oncology Group ANBL00P2, which included an expectant observation approach.
Approximately 770 children are diagnosed with cancer in Australia every year. Research has explored their experiences and developed recommendations for improving support provided to families. These have included the provision of psychology services, improved communication between healthcare professionals and parents, and increased information for families.
Delivering cancer control at scale for Aboriginal and Torres Strait Islander communities is a national priority that requires Aboriginal and Torres Strait Islander leadership and codesign, as well as significant involvement of the Aboriginal community-controlled health sector. The unique genomic variation observed among Aboriginal and Torres Strait Islander peoples may have implications for standard and precision medicine.
Diffuse midline glioma (DMG), including tumors diagnosed in the brainstem (diffuse intrinsic pontine glioma; DIPG), are uniformly fatal brain tumors that lack effective treatment.
Patient-derived orthotopic xenograft (PDOX) mouse models are considered the gold standard for evidence-based preclinical research in pediatric neuro-oncology. This protocol describes the generation of PDOX models by intracranial implantation of human pediatric brain cancer cells into immune-deficient mice, and their continued propagation to establish cohorts of animals for preclinical research.
Nick Gottardo MBChB FRACP PhD Head of Paediatric and Adolescent Oncology and Haematology, Perth Children’s Hospital; Co-head, Brain Tumour Research