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Accuracy of Central Neuro-Imaging Review of DIPG Compared with Histopathology in the International DIPG RegistryDiffuse intrinsic pontine glioma (DIPG) remains a clinico-radiologic diagnosis without routine tissue acquisition. Reliable imaging distinction between DIPG and other pontine tumors with potentially more favorable prognoses and treatment considerations is essential.
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Targeting cross-presentation as a route to improve the efficiency of peptide-based cancer vaccinesCross-presenting dendritic cells (DC) offer an attractive target for vaccination due to their unique ability to process exogenous antigens for presentation on MHC class I molecules. Recent reports have established that these DC express unique surface receptors and play a critical role in the initiation of anti-tumor immunity, opening the way for the development of vaccination strategies specifically targeting these cells.
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Conventional Therapies Deplete Brain-Infiltrating Adaptive Immune Cells in a Mouse Model of Group 3 Medulloblastoma Implicating Myeloid Cells as Favorable Immunotherapy TargetsMedulloblastoma is the most common childhood brain cancer. Mainstay treatments of radiation and chemotherapy have not changed in decades and new treatment approaches are crucial for the improvement of clinical outcomes. To date, immunotherapies for medulloblastoma have been unsuccessful, and studies investigating the immune microenvironment of the disease and the impact of current therapies are limited.
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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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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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Temporally restricted activation of IFNβ signaling determines response to immune checkpoint therapyThe biological determinants of the response to immune checkpoint blockade (ICB) in cancer remain incompletely understood. Little is known about dynamic biological events that underpin therapeutic efficacy due to the inability to frequently sample tumours in patients.
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In vivo loss of tumorigenicity in a patient-derived orthotopic xenograft mouse model of ependymomaEpendymomas (EPN) are the third most common malignant brain cancer in children. Treatment strategies for pediatric EPN have remained unchanged over recent decades, with 10-year survival rates stagnating at just 67% for children aged 0-14 years. Moreover, a proportion of patients who survive treatment often suffer long-term neurological side effects as a result of therapy. It is evident that there is a need for safer, more effective treatments for pediatric EPN patients.
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CD4+ T cells drive an inflammatory, TNF-α/IFN-rich tumor microenvironment responsive to chemotherapyWhile chemotherapy remains the first-line treatment for many cancers, it is still unclear what distinguishes responders from non-responders. Here, we characterize the chemotherapy-responsive tumor microenvironment in mice, using RNA sequencing on tumors before and after cyclophosphamide, and compare the gene expression profiles of responders with progressors.
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Bile Acids and Microbiota Interplay in Pancreatic CancerEvidence suggests the involvement of the microbiota, including oral, intra-tumoral and gut, in pancreatic cancer progression and response to therapy. The gut microbiota modulates the bile acid pool and is associated with maintaining host physiology. Studies have shown that the bile acid/gut microbiota axis is dysregulated in pancreatic cancer.
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Geldanamycin treatment does not result in anti-cancer activity in a preclinical model of orthotopic mesotheliomaMesothelioma is characterised by its aggressive invasive behaviour, affecting the surrounding tissues of the pleura or peritoneum. We compared an invasive pleural model with a non-invasive subcutaneous model of mesothelioma and performed transcriptomic analyses on the tumour samples.