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Towards precision cancer medicine for Aboriginal and Torres Strait Islander cancer health equityDelivering 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.
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Precision-guided treatment in high-risk pediatric cancersRecent research showed that precision medicine can identify new treatment strategies for patients with childhood cancers. However, it is unclear which patients will benefit most from precision-guided treatment.
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BRAF-mediated brain tumors in adults and children: A review and the Australian and New Zealand experienceThe mitogen-activated protein kinase (MAPK) pathway signaling pathway is one of the most commonly mutated pathways in human cancers. In particular, BRAF alterations result in constitutive activation of the rapidly accelerating fibrosarcoma-extracellular signal-regulated kinase-MAPK significant pathway, leading to cellular proliferation, survival, and dedifferentiation.
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A surveillance clinic for children and adolescents with, or at risk of, hereditary cancer predisposition syndromesHereditary cancer predisposition syndromes (HCPS) account for at least 10% of paediatric cancers.1 Li‐Fraumeni syndrome (LFS) is a dominant HCPS caused by mutations in the TP53 gene and is associated with an 80–90% lifetime risk of cancer, commencing in infancy.2 Children of affected individuals are at 50% risk of inheriting the family mutation.
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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.
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Whole genome, transcriptome and methylome profiling enhances actionable target discovery in high-risk pediatric cancerThe Zero Childhood Cancer Program is a precision medicine program to benefit children with poor-outcome, rare, relapsed or refractory cancer. Using tumor and germline whole genome sequencing (WGS) and RNA sequencing (RNAseq) across 252 tumors from high-risk pediatric patients with cancer, we identified 968 reportable molecular aberrations.
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RAD51-Mediated DNA Homologous Recombination Is Independent of PTEN Mutational StatusPTEN mutation occurs in a variety of aggressive cancers and is associated with poor patient outcomes. Recent studies have linked mutational loss of PTEN to reduced RAD51 expression and function, a key factor involved in the homologous recombination (HR) pathway. However, these studies remain controversial, as they fail to establish a definitive causal link to RAD51 expression that is PTEN-dependent, while other studies have not been able to recapitulate the relationship between the PTEN expression and the RAD51/HR function.
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Challenges to curing primary brain tumoursThe seven key challenges summarized in this Position Paper are intended to serve as foci for future research and investment in brain tumours
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The Australian and New Zealand Children's Haematology/Oncology Group Biobanking NetworkThe ANZCHOG-BN was developed to improve and streamline access to high quality pediatric and adolescent/young adult cancer biospecimens for cancer research
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Most clinical anti-EGFR antibodies do not neutralize both wtEGFR and EGFRvIII activation in gliomaWe discovered a previously unknown major resistance mechanism in glioma in that most EGFR domain III-targeting antibodies do not neutralize EGFRvIII