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Assessment of Cannabidiol and Delta9-Tetrahydrocannabiol in Mouse Models of Medulloblastoma and EpendymomaChildren with medulloblastoma and ependymoma are treated with a multidisciplinary approach that incorporates surgery, radiotherapy, and chemotherapy; however, overall survival rates for patients with high-risk disease remain unsatisfactory. Data indicate that plant-derived cannabinoids are effective against adult glioblastoma; however, preclinical evidence supporting their use in pediatric brain cancers is lacking. Here we investigated the potential role for Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) in medulloblastoma and ependymoma. Dose-dependent cytotoxicity of medulloblastoma and ependymoma cells was induced by THC and CBD in vitro, and a synergistic reduction in viability was observed when both drugs were combined.
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Small-molecule screen reveals synergy of cell cycle checkpoint kinase inhibitors with DNA-damaging chemotherapies in medulloblastomaMedulloblastoma (MB) consists of four core molecular subgroups with distinct clinical features and prognoses. Treatment consists of surgery, followed by radiotherapy and cytotoxic chemotherapy. Despite this intensive approach, outcome remains dismal for patients with certain subtypes of MB, namely, MYC-amplified Group 3 and TP53-mutated SHH. Using high-throughput assays, six human MB cell lines were screened against a library of 3208 unique compounds. We identified 45 effective compounds from the screen and found that cell cycle checkpoint kinase (CHK1/2) inhibition synergistically enhanced the cytotoxic activity of clinically used chemotherapeutics cyclophosphamide, cisplatin, and gemcitabine.
Associate Professor Lesterhuis said the gel, developed with the help of chemists at The University of Western Australia, could revolutionise the way solid tumours were treated.
The WA Kids Cancer Centre has a suite of world-leading research projects to unlock new treatments for childhood cancers.
Research
IDH-mutant gliomas in children and adolescents - from biology to clinical trialsGliomas account for nearly 30% of all primary central nervous system (CNS) tumors in children and adolescents and young adults (AYA), contributing to significant morbidity and mortality. The updated molecular classification of gliomas defines molecularly diverse subtypes with a spectrum of tumors associated with age-distinct incidence.
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KMT2A-rearranged acute lymphoblastic leukaemiaKMT2A-rearranged acute lymphoblastic leukaemia (ALL) represents a high risk subtype of childhood ALL. Historical treatment strategies have comprised of intensification with conventional chemotherapy. However, outcomes have remained consistently poor compared to the advances that have been seen for other ALL subtypes, particularly for infants diagnosed before their first birthday
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Comments and Controversies in Oncology: The Tribulations of Trials Developing ONC201Our international team highlights issues with efficacy reports in several studies on DMG with the new drug ONC201.
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SNO-EANO-EURACAN consensus on management of pineal parenchymal tumorsPineal parenchymal tumors are rare neoplasms for which evidence-based treatment recommendations are lacking. These tumors vary in biology, clinical characteristics, and prognosis, requiring treatment that ranges from surgical resection alone to intensive multimodal antineoplastic therapy.
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“If you build it, they will come”: the convergence of funding, research and collaboration in paediatric brain cancer clinical trialsEach year, approximately 1000 children in Australia and New Zealand, aged 0–14 years, are diagnosed with cancer. Despite paediatric cancer accounting for less than 1% of all cancer cases, the impact on their families and communities is profound and disproportionate.
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Invasive fungal disease and antifungal prophylaxis in children with acute leukaemia: a multicentre retrospective Australian cohort studyInvasive fungal disease is a common and important complication in children with acute myeloid leukaemia (AML). We describe the epidemiology of IFD in a large multicentre cohort of children with AML.