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Showing results for "rishi kotecha"
Research
Are outcomes for childhood leukaemia in Australia influenced by geographical remoteness and Indigenous race?Presenting features, biology and outcome for childhood leukaemia are known to vary by ethnic origin, geographic location and socioeconomic group. This study aimed to compare presentation patterns, follow-up and clinical outcomes in Indigenous and non-Indigenous children with acute leukaemia in Australia, and to assess the impact of remoteness and area-based socioeconomic disadvantage on outcome.
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RUNX2 regulates leukemic cell metabolism and chemotaxis in high-risk T cell acute lymphoblastic leukemiaT cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematologic malignancy with inferior outcome compared with that of B cell ALL. Here, we show that Runt-related transcription factor 2 (RUNX2) was upregulated in high-risk T-ALL with KMT2A rearrangements (KMT2A-R) or an immature immunophenotype. In KMT2A-R cells, we identified RUNX2 as a direct target of the KMT2A chimeras, where it reciprocally bound the KMT2A promoter, establishing a regulatory feed-forward mechanism.
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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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Genome-wide association meta-analysis of single-nucleotide polymorphisms and symptomatic venous thromboembolism during therapy for ALL and lymphoma in caucasian childrenThe largest GWAS meta-analysis conducted to date associating SNPs to venous thromboembolism in children and adolescents treated on childhood ALL protocols
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Biologic and Clinical Analysis of Childhood Gamma Delta T-ALL Identifies LMO2/STAG2 Rearrangements as Extremely High RiskAcute lymphoblastic leukemia expressing the gamma delta T-cell receptor (γδ T-ALL) is a poorly understood disease. We studied 200 children with γδ T-ALL from 13 clinical study groups to understand the clinical and genetic features of this disease. We found age and genetic drivers were significantly associated with outcome.
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Minimising Adverse Drug Reactions and Verifying Economic Legitimacy-Pharmacogenomics Implementation in Children (MARVEL- PIC): protocol for a national randomised controlled trialDNA-informed prescribing (termed pharmacogenomics, PGx) is the epitome of personalised medicine. Despite international guidelines existing, its implementation in paediatric oncology remains sparse.
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Optimized peripheral blood progenitor cell mobilization for autologous hematopoietic cell transplantation in children with high-risk and refractory malignanciesOur approach to hematopoietic progenitor cells mobilization resulted in highly effective HPC harvest in children and adolescents with high-risk cancers
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Combining CRISPR-Cas9 and TCR exchange to generate a safe and efficient cord blood-derived T cell product for pediatric relapsed AMLHematopoietic cell transplantation (HCT) is an effective treatment for pediatric patients with high-risk, refractory, or relapsed acute myeloid leukemia (AML). However, a large proportion of transplanted patients eventually die due to relapse. To improve overall survival, we propose a combined strategy based on cord blood (CB)-HCT with the application of AML-specific T cell receptor (TCR)-engineered T cell therapy derived from the same CB graft.
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Pediatric pineoblastoma: A pooled outcome study of North American and Australian therapeutic dataPineoblastoma is a rare brain tumor usually diagnosed in children. Given its rarity, no pineoblastoma-specific trials have been conducted. Studies have included pineoblastoma accruing for other embryonal tumors over the past 30 years.
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Efficacy of DYRK1A inhibitors in novel models of Down syndrome acute lymphoblastic leukemiaDespite significant advances, outcomes for children with Down syndrome (DS, trisomy 21) who develop acute lymphoblastic leukemia remain poor. Reports of large DS-ALL cohorts have shown that children with DS have inferior event-free survival and overall survival compared to children without DS.
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Blinatumomab Added to Chemotherapy in Infant Lymphoblastic LeukemiaKMT2A-rearranged acute lymphoblastic leukemia (ALL) in infants is an aggressive disease with 3-year event-free survival below 40%. Most relapses occur during treatment, with two thirds occurring within 1 year and 90% within 2 years after diagnosis. Outcomes have not improved in recent decades despite intensification of chemotherapy.
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Murine bone-derived mesenchymal stem cells undergo molecular changes after a single passage in cultureThe rarity of the mesenchymal stem cell (MSC) population poses a significant challenge for MSC research. Therefore, these cells are often expanded in vitro, prior to use. However, long-term culture has been shown to alter primary MSC properties.
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Lessons learnt from influenza vaccination in immunocompromised children undergoing treatment for cancerInfluenza infection contributes substantially to global morbidity and mortality, with children undergoing treatment for cancer among the most vulnerable due to immunosuppression associated with disease and treatment. However, influenza remains one of the most common vaccine-preventable diseases.
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Survival Outcomes of Children with Relapsed or Refractory Myeloid Leukemia Associated with Down syndromeChildren with Down syndrome (DS) are at a significantly higher risk of developing acute myeloid leukemia, also termed myeloid leukemia associated with DS (ML-DS). In contrast to the highly favorable prognosis of primary ML-DS, the limited data that are available for children who relapse or who have refractory ML-DS (r/r ML-DS) suggest a dismal prognosis. There are few clinical trials and no standardized treatment approach for this population.
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Delivery of PEGylated liposomal doxorubicin by bispecific antibodies improves treatment in models of high-risk childhood leukemiaHigh-risk childhood leukemia has a poor prognosis because of treatment failure and toxic side effects of therapy. Drug encapsulation into liposomal nanocarriers has shown clinical success at improving biodistribution and tolerability of chemotherapy. However, enhancements in drug efficacy have been limited because of a lack of selectivity of the liposomal formulations for the cancer cells.
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Cardio-Oncology Recommendations for Pediatric Oncology Patients: An Australian and New Zealand Delphi consensusCardio-oncology is a new multidisciplinary area of expertise that seeks to pre-emptively and proactively address cardiac complications that emerge during and following cancer therapy. Modern therapies including molecular targeted therapy and immunotherapy have broadened the agents that can cause cardiac sequelae, often with complications arising within days to weeks of therapy.
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Blinatumomab as bridging therapy in paediatric B-cell acute lymphoblastic leukaemia complicated by invasive fungal diseaseInvasive fungal disease (IFD) remains a challenging complication of treatment for paediatric acute leukaemia. Consensus fungal treatment guidelines recommend withholding chemotherapy to facilitate immune recovery in this setting, yet prolonged delays in leukaemia therapy increase risk of relapse.
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Acute Lymphoblastic Leukemia in Infants: A Distinctive, High-Risk Subtype of Childhood Acute Lymphoblastic LeukemiaAcute lymphoblastic leukemia (ALL) in infants younger than 1 year of age is an aggressive, high-risk subtype of childhood ALL. Infant ALL with KMT2A-r is characteristically poorly responsive to chemotherapy and hematopoietic stem cell transplantation. New strategies, such as molecularly targeted therapies and immunotherapies, are in development and show promise in preclinical models and early phase studies.
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Characterization of mesenchymal stem cells in pre-B acute lymphoblastic leukemiaComponents of the bone marrow microenvironment (BMM) have been shown to mediate the way in which leukemia develops, progresses and responds to treatment. Increasing evidence shows that leukemic cells hijack the BMM, altering its functioning and establishing leukemia-supportive interactions with stromal and immune cells.